21.36 Blood pressure. A randomized comparative experiment studied the effect of diet onblood pressure. Researchers divided 54 healthy white males at random into two groups. Onegroup received a calcium supplement, and the other group received a placebo. At thebeginning of the study, the researchers measured many variables on the subjects. The averageseated systolic blood pressure of the 27 members of the placebo group was reported to bex =114.9 with a standard deviation of s=9.3.a. Give a 95% confidence interval for the mean blood pressure of the population fromwhich the subjects were recruited.b. The recipe you used in part (a) requires an important assumption about the 27 men whoprovided the data. What is this assumption?

Answered: Image /qna-images/answer/12471af7-275d-455a-bea9-a5d962ecf7fc.jpg

Answered: 21.36 Blood pressure. A randomized…

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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A researcher was interested in comparing the resting pulse rate of people who exercise regularly and people who do not exercise regularly. Independent random samples of 16 people aged 30-40 who do not exercise regularly (sample 1) and 12 people aged 30-40 who do exercise regularly (sample 2) were selected and the resting pulse rate of each person was measured. The summary statistics are as follows: Pulse Rate data Group 1 (no exercise) Group 2 (exercise) average 72.7 69.7 standard deviation 10.9 8.2 sample size 16 12 Test the claim that the mean resting pulse rate of people who do not exercise regularly is greater than the mean resting pulse rate of people who exercise regularly, use 0.01 as the significance level. Round you answer to 3 decimal places. Group of answer choices p-value=0.207, evidence not support claim p-value=0.267, evidence support claim p-value=0.414, evidence not support claim p-value=0.793, evidence not support claim p-value=0.207, evidence…
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