The heart rates before and after running a race (in beats per minute) of a sample of four athletes are shown in the following table: Heart rate after Heart rate before 50 52 56 53 Athlete 1 120 3 4 129 134 123 The aim of the experiment was to determine whether the population mean heart rate after a race is more than 70 beats per minute greater than before the race. Use the appropriate hypotheses test to determine whether the population mean heart rate after a race is more than 70 beats per minute greater than before the race. Use a = 0.05 and also find the approximate p-value. Also mention any assumptions made. 1.4 1.5 Using your answer in 1.4), comment on whether you are subject to a Type I or a Type II| error. Describe this error in the context of this problem. 1.6 Estimate the difference in the mean heart rate by calculating a 90% confidence interval for the data. Use this result to determine whether the population mean heart rate after a race is more than 70 beats per minute greater than before the race.

The heart rates before and after running a race (in beats per minute) of a sample of four athletes are shown in the following table: Heart rate after Heart rate before 50 52 56 53 Athlete 1 120 3 4 129 134 123 The aim of the experiment was to determine whether the population mean heart rate after a race is more than 70 beats per minute greater than before the race. Use the appropriate hypotheses test to determine whether the population mean heart rate after a race is more than 70 beats per minute greater than before the race. Use a = 0.05 and also find the approximate p-value. Also mention any assumptions made. 1.4 1.5 Using your answer in 1.4), comment on whether you are subject to a Type I or a Type II| error. Describe this error in the context of this problem. 1.6 Estimate the difference in the mean heart rate by calculating a 90% confidence interval for the data. Use this result to determine whether the population mean heart rate after a race is more than 70 beats per minute greater than before the race.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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