{"id":448,"date":"2022-07-11T18:08:41","date_gmt":"2022-07-11T18:08:41","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/alphamodule\/?post_type=chapter&p=448"},"modified":"2022-07-11T18:08:42","modified_gmt":"2022-07-11T18:08:42","slug":"calculating-the-mean-and-median-of-a-data-set-apply-it-2","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/alphamodule\/chapter\/calculating-the-mean-and-median-of-a-data-set-apply-it-2\/","title":{"raw":"Calculating the Mean and Median of a Data Set: Apply It 2","rendered":"Calculating the Mean and Median of a Data Set: Apply It 2"},"content":{"raw":"Now let's go to the technology to calculate the precise values for mean and median.\r\n
\r\n\r\nGo to the Describing and Exploring Quantitative Variables<\/em> tool at https:\/\/dcmathpathways.shinyapps.io\/EDA_quantitative\/<\/a>.\r\n

Step 1) Select the Single Group<\/strong> tab.<\/p>\r\n

Step 2) Locate the drop-down menu under Enter Data<\/strong> and select From Textbook<\/strong>.<\/p>\r\n

Step 3) Locate the drop-down menu under Data Set<\/strong>\u00a0and select Sleep Study: Poor Sleep Quality Score<\/strong>. If desired, select Histogram<\/strong> under Choose Type of Plot<\/strong>. Under Select Binwidth for Histogram<\/strong>, use\u00a01 to emulate the histogram in the image above.<\/p>\r\n\r\n<\/div>\r\nThe tool will display descriptive statistics and a distribution for the quantitative variable\u00a0PoorSleepQuality<\/em> from the study's data set. Recall that this variable records individual responses to a measure of sleep quality, with higher numbers indicating poorer sleep.\r\n\r\nRecord the calculated values for mean and median of Poor Sleep Quality Score in the table in Question 3 below.\r\n

Step 4) Change the Data Set<\/strong> selection to Alcoholic Drinks Per Week<\/strong> and record the calculated values for mean and median of Alcoholic Drinks Per Week in the table below.<\/div>\r\n
\r\n

question 3<\/h3>\r\n[ohm_question hide_question_numbers=1]240976[\/ohm_question]\r\n\r\n[reveal-answer q=\"171533\"]Hint[\/reveal-answer]\r\n[hidden-answer a=\"171533\"]Make sure the Single Group tab is selected and read these values from \"Descriptive Statistics.\"[\/hidden-answer]\r\n\r\n<\/div>\r\n
\r\n

question 4<\/h3>\r\n[ohm_question hide_question_numbers=1]240977[\/ohm_question]\r\n\r\n[reveal-answer q=\"133309\"]Hint[\/reveal-answer]\r\n[hidden-answer a=\"133309\"]What do you<\/em> think?[\/hidden-answer]\r\n\r\n<\/div>\r\n
\r\n

question 5<\/h3>\r\n[ohm_question hide_question_numbers=1]240978[\/ohm_question]\r\n\r\n[reveal-answer q=\"787974\"]Hint[\/reveal-answer]\r\n[hidden-answer a=\"787974\"]What do you<\/em> think?[\/hidden-answer]\r\n\r\n<\/div>\r\n
\r\n

video placement<\/h3>\r\n[sub-summary: surfaces only after Q 2 - 5 have been answered. \"Did you find it difficult to estimate the centers of the data using the histograms? If your estimations compared well with the calculations from the tool, you may have instinctively used visual estimations of \"weight\" to estimate the mean or estimations of frequency counts to estimate the median. Show an analysis using these ideas on the two graphs to model the behavior of estimation for the students. Show the analysis of mean and median calculated by the tool.\u00a0 ]<\/span>\r\n\r\n<\/div>\r\nLet\u2019s now compare quality of sleep and alcohol consumption habits between those who identified as owls, larks, or neither.","rendered":"

Now let’s go to the technology to calculate the precise values for mean and median.<\/p>\n

\n

Go to the Describing and Exploring Quantitative Variables<\/em> tool at https:\/\/dcmathpathways.shinyapps.io\/EDA_quantitative\/<\/a>.<\/p>\n

Step 1) Select the Single Group<\/strong> tab.<\/p>\n

Step 2) Locate the drop-down menu under Enter Data<\/strong> and select From Textbook<\/strong>.<\/p>\n

Step 3) Locate the drop-down menu under Data Set<\/strong>\u00a0and select Sleep Study: Poor Sleep Quality Score<\/strong>. If desired, select Histogram<\/strong> under Choose Type of Plot<\/strong>. Under Select Binwidth for Histogram<\/strong>, use\u00a01 to emulate the histogram in the image above.<\/p>\n<\/div>\n

The tool will display descriptive statistics and a distribution for the quantitative variable\u00a0PoorSleepQuality<\/em> from the study’s data set. Recall that this variable records individual responses to a measure of sleep quality, with higher numbers indicating poorer sleep.<\/p>\n

Record the calculated values for mean and median of Poor Sleep Quality Score in the table in Question 3 below.<\/p>\n

Step 4) Change the Data Set<\/strong> selection to Alcoholic Drinks Per Week<\/strong> and record the calculated values for mean and median of Alcoholic Drinks Per Week in the table below.<\/div>\n
\n

question 3<\/h3>\n