{"id":2189,"date":"2022-01-27T02:21:52","date_gmt":"2022-01-27T02:21:52","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/?post_type=chapter&#038;p=2189"},"modified":"2022-02-10T00:49:26","modified_gmt":"2022-02-10T00:49:26","slug":"17c","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/chapter\/17c\/","title":{"raw":"17C","rendered":"17C"},"content":{"raw":"<div align=\"center\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><strong>Variable name<\/strong><\/td>\r\n<td><strong>Definition<\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>competitorname<\/em><\/td>\r\n<td>The name of the Halloween candy<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>chocolate<\/em><\/td>\r\n<td>Does it contain chocolate?<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>fruity<\/em><\/td>\r\n<td>Is it fruit flavored?<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>caramel<\/em><\/td>\r\n<td>Is there caramel in the candy?<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>peanutyalmondy<\/em><\/td>\r\n<td>Does it contain peanuts, peanut butter, or almonds?<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>nougat<\/em><\/td>\r\n<td>Does it contain nougat?<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>crispedricewafer<\/em><\/td>\r\n<td>Does it contain crisped rice, wafers, or a cookie component?<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>hard<\/em><\/td>\r\n<td>Is it a hard candy?<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>bar<\/em><\/td>\r\n<td>Is it a candy bar?<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>pluribus<\/em><\/td>\r\n<td>Is it one of many candies in a bag or box?<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>sugarpercent<\/em><\/td>\r\n<td>The percentile of sugar it falls under within the dataset.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>pricepercent<\/em><\/td>\r\n<td>The unit price percentile compared to the rest of the set.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>winpercent<\/em><\/td>\r\n<td>The overall win percentage according to 269,000 matchups.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<div align=\"center\">\r\n<table>\r\n<thead>\r\n<tr>\r\n<td><strong>Parameter<\/strong><\/td>\r\n<td><strong>Estimate<\/strong><\/td>\r\n<td><strong>Standard\r\nerror<\/strong><\/td>\r\n<td><strong>t-value<\/strong><\/td>\r\n<td><strong>Pr\u00a0&gt;\u00a0|t|<\/strong><\/td>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td><strong>Intercept<\/strong><\/td>\r\n<td>42.93<\/td>\r\n<td>2.88<\/td>\r\n<td>14.91<\/td>\r\n<td>&lt;.0001<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong><em>peanutyalmondy<\/em><\/strong><strong> = TRUE<\/strong><\/td>\r\n<td>15.34<\/td>\r\n<td>3.90<\/td>\r\n<td>3.93<\/td>\r\n<td>0.0002<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong><em>sugarpercent<\/em><\/strong><\/td>\r\n<td>10.14<\/td>\r\n<td>5.15<\/td>\r\n<td>1.97<\/td>\r\n<td>0.0523<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<div align=\"center\">\r\n<table>\r\n<thead>\r\n<tr>\r\n<td><strong>Parameter<\/strong><\/td>\r\n<td><strong>Estimate<\/strong><\/td>\r\n<td><strong>Standard\r\nerror<\/strong><\/td>\r\n<td><strong>t-value<\/strong><\/td>\r\n<td><strong>Pr\u00a0&gt;\u00a0|t|<\/strong><\/td>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td><strong>Intercept<\/strong><\/td>\r\n<td>43.40<\/td>\r\n<td>3.01<\/td>\r\n<td>14.41<\/td>\r\n<td>&lt;.0001<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong><em>peanutyalmondy<\/em><\/strong><strong> = TRUE<\/strong><\/td>\r\n<td>10.48<\/td>\r\n<td>9.63<\/td>\r\n<td>1.09<\/td>\r\n<td>0.2799<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong><em>sugarpercent<\/em><\/strong><\/td>\r\n<td>9.15<\/td>\r\n<td>5.48<\/td>\r\n<td>1.67<\/td>\r\n<td>0.0985<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong><em>sugarpercent<\/em><\/strong><strong><em>peanutyalmondy <\/em><\/strong><strong>= TRUE<\/strong><\/td>\r\n<td>9.23<\/td>\r\n<td>16.69<\/td>\r\n<td>0.55<\/td>\r\n<td>0.5818<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<div align=\"center\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><strong><em>peanutyalmondy<\/em><\/strong><strong> indicator variable value<\/strong><\/td>\r\n<td><strong>Estimated model equation<\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>peanutyalmondy<\/em> \u00a01 or TRUE<\/td>\r\n<td>\u00a0_________ \u00a0________<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>peanutyalmondy<\/em> \u00a00 or FALSE<\/td>\r\n<td>\u00a0_________ ________<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<div align=\"center\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><strong><em>LeadLevels<\/em><\/strong><\/td>\r\n<td><strong><em>Elevation_Feet<\/em><\/strong><\/td>\r\n<td><strong><em>Direction<\/em><\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>3.475<\/td>\r\n<td>2000<\/td>\r\n<td>west<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>3.359<\/td>\r\n<td>2000<\/td>\r\n<td>west<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>3.877<\/td>\r\n<td>2000<\/td>\r\n<td>west<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4<\/td>\r\n<td>2500<\/td>\r\n<td>west<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>3.618<\/td>\r\n<td>2500<\/td>\r\n<td>west<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>2.644<\/td>\r\n<td>2500<\/td>\r\n<td>west<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4.575<\/td>\r\n<td>3000<\/td>\r\n<td>west<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>8.6<\/td>\r\n<td>3000<\/td>\r\n<td>west<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>6.952<\/td>\r\n<td>3000<\/td>\r\n<td>east<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4.349<\/td>\r\n<td>3000<\/td>\r\n<td>east<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<div align=\"center\">\r\n<table>\r\n<thead>\r\n<tr>\r\n<td><strong>Parameter<\/strong><\/td>\r\n<td><strong>Estimate<\/strong><\/td>\r\n<td><strong>Standard\r\nError<\/strong><\/td>\r\n<td><strong>t-value<\/strong><\/td>\r\n<td><strong>Pr\u00a0&gt;\u00a0|t|<\/strong><\/td>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td><strong>Intercept<\/strong><\/td>\r\n<td>2.385<\/td>\r\n<td>5.393<\/td>\r\n<td>0.44<\/td>\r\n<td>0.6598<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong><em>Direction<\/em><\/strong><strong> = east<\/strong><\/td>\r\n<td>3.201<\/td>\r\n<td>7.670<\/td>\r\n<td>0.42<\/td>\r\n<td>0.6777<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong><em>Elevation_Feet<\/em><\/strong><\/td>\r\n<td>0.002<\/td>\r\n<td>0.002<\/td>\r\n<td>0.84<\/td>\r\n<td>0.4014<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong><em>Elevation_Feet<\/em><\/strong><strong> * <em>Direction<\/em> = east<\/strong><\/td>\r\n<td>-0.001<\/td>\r\n<td>0.003<\/td>\r\n<td>-0.44<\/td>\r\n<td>0.6629<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<div align=\"center\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><strong>Variable<\/strong><\/td>\r\n<td><strong>Description<\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>ID<\/em><\/td>\r\n<td>Identification number<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Height<\/em><\/td>\r\n<td>Height in centimeters (cm)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Weight<\/em><\/td>\r\n<td>Weight in kilograms (kg)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Age<\/em><\/td>\r\n<td>Age in years<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Sex<\/em><\/td>\r\n<td>Male\/female<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Smokes<\/em><\/td>\r\n<td>Are you a regular smoker? (yes\/no)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Alcohol<\/em><\/td>\r\n<td>Are you a regular drinker? (yes\/no)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Exercise<\/em><\/td>\r\n<td>What is your frequency of exercise? (low, moderate, high)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>GroupAssignment<\/em><\/td>\r\n<td>Whether the student ran or sat between the first and second pulse measurements<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Pulse1<\/em><\/td>\r\n<td>First pulse measurement (rate per minute)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Pulse2<\/em><\/td>\r\n<td>Second pulse measurement (rate per minute)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><em>Year<\/em><\/td>\r\n<td>Year of class (1993\u20131998)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<div style=\"text-align: left;\" align=\"center\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td>Skill or Concept: I can . . .<\/td>\r\n<td>Questions to check your understanding<\/td>\r\n<td>Rating\r\nfrom 1 to 5<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Interpret the trend of a linear regression model with two explanatory variables.<\/td>\r\n<td>5, 6, 8<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Visualize an interaction between a continuous explanatory variable and a categorical explanatory variable using a scatterplot.<\/td>\r\n<td>1\u20134\r\n\r\n7, 9<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<img class=\"alignnone wp-image-2190\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/5738\/2022\/01\/27021637\/Picture127-300x200.jpg\" alt=\"An assortment of sweets.\" width=\"914\" height=\"609\" \/> <img class=\"alignnone wp-image-2191\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/5738\/2022\/01\/27021644\/Picture1281-300x171.png\" alt=\"A scatterplot labeled \u201csugar percent\u201d on the horizontal axis and \u201cwinpercent\u201d on the y-axis. There is a legend titled peanutyalmondy showing that the blue line and points indicate TRUE and the red line and points indicate FALSE. The red dots are very spread out but arranged in a loosely linear pattern. The red line has a positive slope. The blue dots are also spread out in a loosely linear pattern and the blue line appears to have a similar slope to the red line, but is above it.\" width=\"944\" height=\"538\" \/> <img class=\"alignnone wp-image-2192\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/5738\/2022\/01\/27021650\/Picture1291-300x225.png\" alt=\"A scatterplot labeled \u201csugar percent\u201d on the horizontal axis and \u201cwinpercent\u201d on the y-axis. There is a legend titled peanutyalmondy showing that the blue line and points indicate TRUE and the red line and points indicate FALSE. The red dots are very spread out but arranged in a loosely linear pattern. The red line has a positive slope. The blue dots are also spread out in a loosely linear pattern and the blue line has a steeper positive slope than the red line. It is also higher than the red line.\" width=\"959\" height=\"719\" \/>\r\n\r\nGlossary\r\n<dl id=\"fs-id1170572229168\" class=\"definition\">\r\n \t<dt>interaction<\/dt>\r\n \t<dd id=\"fs-id1170572229174\">when an explanatory variable has a different effect on the response variable.<\/dd>\r\n<\/dl>\r\n<dl id=\"fs-id1170572229190\" class=\"definition\">\r\n \t<dt>interaction term<\/dt>\r\n \t<dd id=\"fs-id1170572229195\">a variable that represents an interaction between two variables.<\/dd>\r\n<\/dl>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>","rendered":"<div style=\"margin: auto;\">\n<table>\n<tbody>\n<tr>\n<td><strong>Variable name<\/strong><\/td>\n<td><strong>Definition<\/strong><\/td>\n<\/tr>\n<tr>\n<td><em>competitorname<\/em><\/td>\n<td>The name of the Halloween candy<\/td>\n<\/tr>\n<tr>\n<td><em>chocolate<\/em><\/td>\n<td>Does it contain chocolate?<\/td>\n<\/tr>\n<tr>\n<td><em>fruity<\/em><\/td>\n<td>Is it fruit flavored?<\/td>\n<\/tr>\n<tr>\n<td><em>caramel<\/em><\/td>\n<td>Is there caramel in the candy?<\/td>\n<\/tr>\n<tr>\n<td><em>peanutyalmondy<\/em><\/td>\n<td>Does it contain peanuts, peanut butter, or almonds?<\/td>\n<\/tr>\n<tr>\n<td><em>nougat<\/em><\/td>\n<td>Does it contain nougat?<\/td>\n<\/tr>\n<tr>\n<td><em>crispedricewafer<\/em><\/td>\n<td>Does it contain crisped rice, wafers, or a cookie component?<\/td>\n<\/tr>\n<tr>\n<td><em>hard<\/em><\/td>\n<td>Is it a hard candy?<\/td>\n<\/tr>\n<tr>\n<td><em>bar<\/em><\/td>\n<td>Is it a candy bar?<\/td>\n<\/tr>\n<tr>\n<td><em>pluribus<\/em><\/td>\n<td>Is it one of many candies in a bag or box?<\/td>\n<\/tr>\n<tr>\n<td><em>sugarpercent<\/em><\/td>\n<td>The percentile of sugar it falls under within the dataset.<\/td>\n<\/tr>\n<tr>\n<td><em>pricepercent<\/em><\/td>\n<td>The unit price percentile compared to the rest of the set.<\/td>\n<\/tr>\n<tr>\n<td><em>winpercent<\/em><\/td>\n<td>The overall win percentage according to 269,000 matchups.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"margin: auto;\">\n<table>\n<thead>\n<tr>\n<td><strong>Parameter<\/strong><\/td>\n<td><strong>Estimate<\/strong><\/td>\n<td><strong>Standard<br \/>\nerror<\/strong><\/td>\n<td><strong>t-value<\/strong><\/td>\n<td><strong>Pr\u00a0&gt;\u00a0|t|<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Intercept<\/strong><\/td>\n<td>42.93<\/td>\n<td>2.88<\/td>\n<td>14.91<\/td>\n<td>&lt;.0001<\/td>\n<\/tr>\n<tr>\n<td><strong><em>peanutyalmondy<\/em><\/strong><strong> = TRUE<\/strong><\/td>\n<td>15.34<\/td>\n<td>3.90<\/td>\n<td>3.93<\/td>\n<td>0.0002<\/td>\n<\/tr>\n<tr>\n<td><strong><em>sugarpercent<\/em><\/strong><\/td>\n<td>10.14<\/td>\n<td>5.15<\/td>\n<td>1.97<\/td>\n<td>0.0523<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"margin: auto;\">\n<table>\n<thead>\n<tr>\n<td><strong>Parameter<\/strong><\/td>\n<td><strong>Estimate<\/strong><\/td>\n<td><strong>Standard<br \/>\nerror<\/strong><\/td>\n<td><strong>t-value<\/strong><\/td>\n<td><strong>Pr\u00a0&gt;\u00a0|t|<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Intercept<\/strong><\/td>\n<td>43.40<\/td>\n<td>3.01<\/td>\n<td>14.41<\/td>\n<td>&lt;.0001<\/td>\n<\/tr>\n<tr>\n<td><strong><em>peanutyalmondy<\/em><\/strong><strong> = TRUE<\/strong><\/td>\n<td>10.48<\/td>\n<td>9.63<\/td>\n<td>1.09<\/td>\n<td>0.2799<\/td>\n<\/tr>\n<tr>\n<td><strong><em>sugarpercent<\/em><\/strong><\/td>\n<td>9.15<\/td>\n<td>5.48<\/td>\n<td>1.67<\/td>\n<td>0.0985<\/td>\n<\/tr>\n<tr>\n<td><strong><em>sugarpercent<\/em><\/strong><strong><em>peanutyalmondy <\/em><\/strong><strong>= TRUE<\/strong><\/td>\n<td>9.23<\/td>\n<td>16.69<\/td>\n<td>0.55<\/td>\n<td>0.5818<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"margin: auto;\">\n<table>\n<tbody>\n<tr>\n<td><strong><em>peanutyalmondy<\/em><\/strong><strong> indicator variable value<\/strong><\/td>\n<td><strong>Estimated model equation<\/strong><\/td>\n<\/tr>\n<tr>\n<td><em>peanutyalmondy<\/em> \u00a01 or TRUE<\/td>\n<td>\u00a0_________ \u00a0________<\/td>\n<\/tr>\n<tr>\n<td><em>peanutyalmondy<\/em> \u00a00 or FALSE<\/td>\n<td>\u00a0_________ ________<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"margin: auto;\">\n<table>\n<tbody>\n<tr>\n<td><strong><em>LeadLevels<\/em><\/strong><\/td>\n<td><strong><em>Elevation_Feet<\/em><\/strong><\/td>\n<td><strong><em>Direction<\/em><\/strong><\/td>\n<\/tr>\n<tr>\n<td>3.475<\/td>\n<td>2000<\/td>\n<td>west<\/td>\n<\/tr>\n<tr>\n<td>3.359<\/td>\n<td>2000<\/td>\n<td>west<\/td>\n<\/tr>\n<tr>\n<td>3.877<\/td>\n<td>2000<\/td>\n<td>west<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>2500<\/td>\n<td>west<\/td>\n<\/tr>\n<tr>\n<td>3.618<\/td>\n<td>2500<\/td>\n<td>west<\/td>\n<\/tr>\n<tr>\n<td>2.644<\/td>\n<td>2500<\/td>\n<td>west<\/td>\n<\/tr>\n<tr>\n<td>4.575<\/td>\n<td>3000<\/td>\n<td>west<\/td>\n<\/tr>\n<tr>\n<td>8.6<\/td>\n<td>3000<\/td>\n<td>west<\/td>\n<\/tr>\n<tr>\n<td>6.952<\/td>\n<td>3000<\/td>\n<td>east<\/td>\n<\/tr>\n<tr>\n<td>4.349<\/td>\n<td>3000<\/td>\n<td>east<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"margin: auto;\">\n<table>\n<thead>\n<tr>\n<td><strong>Parameter<\/strong><\/td>\n<td><strong>Estimate<\/strong><\/td>\n<td><strong>Standard<br \/>\nError<\/strong><\/td>\n<td><strong>t-value<\/strong><\/td>\n<td><strong>Pr\u00a0&gt;\u00a0|t|<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Intercept<\/strong><\/td>\n<td>2.385<\/td>\n<td>5.393<\/td>\n<td>0.44<\/td>\n<td>0.6598<\/td>\n<\/tr>\n<tr>\n<td><strong><em>Direction<\/em><\/strong><strong> = east<\/strong><\/td>\n<td>3.201<\/td>\n<td>7.670<\/td>\n<td>0.42<\/td>\n<td>0.6777<\/td>\n<\/tr>\n<tr>\n<td><strong><em>Elevation_Feet<\/em><\/strong><\/td>\n<td>0.002<\/td>\n<td>0.002<\/td>\n<td>0.84<\/td>\n<td>0.4014<\/td>\n<\/tr>\n<tr>\n<td><strong><em>Elevation_Feet<\/em><\/strong><strong> * <em>Direction<\/em> = east<\/strong><\/td>\n<td>-0.001<\/td>\n<td>0.003<\/td>\n<td>-0.44<\/td>\n<td>0.6629<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"margin: auto;\">\n<table>\n<tbody>\n<tr>\n<td><strong>Variable<\/strong><\/td>\n<td><strong>Description<\/strong><\/td>\n<\/tr>\n<tr>\n<td><em>ID<\/em><\/td>\n<td>Identification number<\/td>\n<\/tr>\n<tr>\n<td><em>Height<\/em><\/td>\n<td>Height in centimeters (cm)<\/td>\n<\/tr>\n<tr>\n<td><em>Weight<\/em><\/td>\n<td>Weight in kilograms (kg)<\/td>\n<\/tr>\n<tr>\n<td><em>Age<\/em><\/td>\n<td>Age in years<\/td>\n<\/tr>\n<tr>\n<td><em>Sex<\/em><\/td>\n<td>Male\/female<\/td>\n<\/tr>\n<tr>\n<td><em>Smokes<\/em><\/td>\n<td>Are you a regular smoker? (yes\/no)<\/td>\n<\/tr>\n<tr>\n<td><em>Alcohol<\/em><\/td>\n<td>Are you a regular drinker? (yes\/no)<\/td>\n<\/tr>\n<tr>\n<td><em>Exercise<\/em><\/td>\n<td>What is your frequency of exercise? (low, moderate, high)<\/td>\n<\/tr>\n<tr>\n<td><em>GroupAssignment<\/em><\/td>\n<td>Whether the student ran or sat between the first and second pulse measurements<\/td>\n<\/tr>\n<tr>\n<td><em>Pulse1<\/em><\/td>\n<td>First pulse measurement (rate per minute)<\/td>\n<\/tr>\n<tr>\n<td><em>Pulse2<\/em><\/td>\n<td>Second pulse measurement (rate per minute)<\/td>\n<\/tr>\n<tr>\n<td><em>Year<\/em><\/td>\n<td>Year of class (1993\u20131998)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"text-align: left; margin: auto;\">\n<table>\n<tbody>\n<tr>\n<td>Skill or Concept: I can . . .<\/td>\n<td>Questions to check your understanding<\/td>\n<td>Rating<br \/>\nfrom 1 to 5<\/td>\n<\/tr>\n<tr>\n<td>Interpret the trend of a linear regression model with two explanatory variables.<\/td>\n<td>5, 6, 8<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Visualize an interaction between a continuous explanatory variable and a categorical explanatory variable using a scatterplot.<\/td>\n<td>1\u20134<\/p>\n<p>7, 9<\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2190\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/5738\/2022\/01\/27021637\/Picture127-300x200.jpg\" alt=\"An assortment of sweets.\" width=\"914\" height=\"609\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2191\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/5738\/2022\/01\/27021644\/Picture1281-300x171.png\" alt=\"A scatterplot labeled \u201csugar percent\u201d on the horizontal axis and \u201cwinpercent\u201d on the y-axis. There is a legend titled peanutyalmondy showing that the blue line and points indicate TRUE and the red line and points indicate FALSE. The red dots are very spread out but arranged in a loosely linear pattern. The red line has a positive slope. The blue dots are also spread out in a loosely linear pattern and the blue line appears to have a similar slope to the red line, but is above it.\" width=\"944\" height=\"538\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2192\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/5738\/2022\/01\/27021650\/Picture1291-300x225.png\" alt=\"A scatterplot labeled \u201csugar percent\u201d on the horizontal axis and \u201cwinpercent\u201d on the y-axis. There is a legend titled peanutyalmondy showing that the blue line and points indicate TRUE and the red line and points indicate FALSE. The red dots are very spread out but arranged in a loosely linear pattern. The red line has a positive slope. The blue dots are also spread out in a loosely linear pattern and the blue line has a steeper positive slope than the red line. It is also higher than the red line.\" width=\"959\" height=\"719\" \/><\/p>\n<p>Glossary<\/p>\n<dl id=\"fs-id1170572229168\" class=\"definition\">\n<dt>interaction<\/dt>\n<dd id=\"fs-id1170572229174\">when an explanatory variable has a different effect on the response variable.<\/dd>\n<\/dl>\n<dl id=\"fs-id1170572229190\" class=\"definition\">\n<dt>interaction term<\/dt>\n<dd id=\"fs-id1170572229195\">a variable that represents an interaction between two variables.<\/dd>\n<\/dl>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"author":23592,"menu_order":60,"template":"","meta":{"_candela_citation":"[]","CANDELA_OUTCOMES_GUID":"","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-2189","chapter","type-chapter","status-publish","hentry"],"part":704,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/pressbooks\/v2\/chapters\/2189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/wp\/v2\/users\/23592"}],"version-history":[{"count":4,"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/pressbooks\/v2\/chapters\/2189\/revisions"}],"predecessor-version":[{"id":3007,"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/pressbooks\/v2\/chapters\/2189\/revisions\/3007"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/pressbooks\/v2\/parts\/704"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/pressbooks\/v2\/chapters\/2189\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/wp\/v2\/media?parent=2189"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/pressbooks\/v2\/chapter-type?post=2189"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/wp\/v2\/contributor?post=2189"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/lumen-danacenter-statsmockup\/wp-json\/wp\/v2\/license?post=2189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}