A study measured heart rate per minute in two groups of people.Data is presented in the following table.GroupHeart rate/minute164, 62, 64, 61, 66, 70, 73, 61, 59, 66, 67, 68, 66, 71272, 76, 72, 71, 69, 68, 78, 75, 76, 74, 77, 78, 79, 82, 88Calculate the mean for both group 1 and group 2.Enter your answer in the text box below.
Question
A study measured heart rate per minute in two groups of people.Data is presented in the following table.GroupHeart rate/minute164, 62, 64, 61, 66, 70, 73, 61, 59, 66, 67, 68, 66, 71272, 76, 72, 71, 69, 68, 78, 75, 76, 74, 77, 78, 79, 82, 88Calculate the mean for both group 1 and group 2.Enter your answer in the text box below.
Solution
To calculate the mean (average) of a set of numbers, you add up all the numbers and then divide by the quantity of numbers.
For Group 1: Add up all the heart rates: 64 + 62 + 64 + 61 + 66 + 70 + 73 + 61 + 59 + 66 + 67 + 68 + 66 + 71 = 858 Then divide by the quantity of numbers, which is 14: 858 ÷ 14 = 61.29 (rounded to two decimal places)
For Group 2: Add up all the heart rates: 72 + 76 + 72 + 71 + 69 + 68 + 78 + 75 + 76 + 74 + 77 + 78 + 79 + 82 + 88 = 1085 Then divide by the quantity of numbers, which is 15: 1085 ÷ 15 = 72.33 (rounded to two decimal places)
So, the mean heart rate for Group 1 is 61.29 beats per minute and for Group 2 is 72.33 beats per minute.
Similar Questions
The table below contains pulse rates after running for 1 minute, collected from a sample of females who drink alcohol. The mean pulse rate after running for 1 minute of females who do not drink is 97 beats per minute. Do the data show that the mean pulse rate of females who do drink alcohol is higher than the mean pulse rate of females who do not drink? Test at the 2% level.pulse rate after running one minute in bpm57124122110801107998667080124649780701094185621189575140107671313796131159421141079896P: Parameter What is the correct parameter symbol for this problem? What is the wording of the parameter in the context of this problem? H: Hypotheses Fill in the correct null and alternative hypotheses:𝐻0: bpm 𝐻𝐴: bpm A: Assumptions Since information was collected from each object, what conditions do we need to check? Check all that apply. outliers in the data𝑛≥30 or normal population𝑁≥20𝑛𝑛(𝑝̂)≥10σσ is unknownσσ is known𝑛𝑝≥10𝑛(1-𝑝)≥10no outliers in the data𝑛(1-𝑝̂)≥10 Check those assumptions: 1. Is the value of 𝜎 known? 2. Which of the following is the correct modified boxplot? 20406080100120140160pulse rate after running one minute in bpm377096135.5159[Graphs generated by this script: setBorder(15); initPicture(20,160,-3,6);axes(20,100,1,null,null,1,'off');text([81,-3],"pulse rate after running one minute in bpm");line([37,2],[37,4]); rect([70,2],[135.5,4]); line([96,2],[96,4]);line([159,2],[159,4]); line([37,3],[70,3]); line([135.5,3],[159,3]);fontsize*=.8;fontfill='blue';text([37,4],'37','above');text([70,4],'70','above');text([96,4],'96','above');text([135.5,4],'135.5','above');text([159,4],'159','above');fontfill='black';fontsize*=1.25;]20406080100120140160pulse rate after running one minute in bpm377096112159[Graphs generated by this script: setBorder(15); initPicture(20,160,-3,6);axes(20,100,1,null,null,1,'off');text([81,-3],"pulse rate after running one minute in bpm");line([37,2],[37,4]); rect([70,2],[112,4]); line([96,2],[96,4]);line([159,2],[159,4]); line([37,3],[70,3]); line([112,3],[159,3]);fontsize*=.8;fontfill='blue';text([37,4],'37','above');text([70,4],'70','above');text([96,4],'96','above');text([112,4],'112','above');text([159,4],'159','above');fontfill='black';fontsize*=1.25;]20406080100120140160pulse rate after running one minute in bpm377083112159[Graphs generated by this script: setBorder(15); initPicture(20,160,-3,6);axes(20,100,1,null,null,1,'off');text([81,-3],"pulse rate after running one minute in bpm");line([37,2],[37,4]); rect([70,2],[112,4]); line([83,2],[83,4]);line([159,2],[159,4]); line([37,3],[70,3]); line([112,3],[159,3]);fontsize*=.8;fontfill='blue';text([37,4],'37','above');text([70,4],'70','above');text([83,4],'83','above');text([112,4],'112','above');text([159,4],'159','above');fontfill='black';fontsize*=1.25;]20406080100120140160pulse rate after running one minute in bpm3753.596112159[Graphs generated by this script: setBorder(15); initPicture(20,160,-3,6);axes(20,100,1,null,null,1,'off');text([81,-3],"pulse rate after running one minute in bpm");line([37,2],[37,4]); rect([53.5,2],[112,4]); line([96,2],[96,4]);line([159,2],[159,4]); line([37,3],[53.5,3]); line([112,3],[159,3]);fontsize*=.8;fontfill='blue';text([37,4],'37','above');text([53.5,4],'53.5','above');text([96,4],'96','above');text([112,4],'112','above');text([159,4],'159','above');fontfill='black';fontsize*=1.25;] Are there any outliers? 3. 𝑛 = which is Is it reasonable to assume the population is normally distributed? N: Name the test The conditions are met to use a .T: Test Statistic The symbol and value of the random variable on this problem are as follows: = bpm The test statistic formula set up with numbers is as follows: Round values to 2 decimal places. 𝑡=𝑋¯-𝜇𝑠𝑛=(( - ) / / )) The final answer for the test statistic from technology is as follows: Round to 2 decimal places. t = O: Obtain the P-value Report the final answer to 4 decimal places. It is possible when rounded that a p-value is 0.0000 P-value = M: Make a decision Since the p-value , we .S: State a conclustion There significant evidence to conclude bpm
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