A statistician is trying to determine if eating a healthy vegetable diet will help control blood pressure. The statistician compared 18 people on a healthy vegetable diet (eat vegetables with every meal) with an average blood pressure of 123 mmHg and a standard deviation of 10mmHg to 40 people who did not have a healthy vegetable diet. The 40 people had an average blood pressure of 132mmHg with a standard deviation of 10 mmHg. Assume blood pressure values are normally distributed. At the 5% significance level determine if the average blood pressure of people on a healthy vegetable diet is better than those who are not on one. Take the people on the vegetable diet as population 1.
A statistician is trying to determine if eating a healthy vegetable diet will help control blood pressure. The statistician compared 18 people on a healthy vegetable diet (eat vegetables with every meal) with an average blood pressure of 123 mmHg and a standard deviation of 10mmHg to 40 people who did not have a healthy vegetable diet. The 40 people had an average blood pressure of 132mmHg with a standard deviation of 10 mmHg. Assume blood pressure values are normally distributed. At the 5% significance level determine if the average blood pressure of people on a healthy vegetable diet is better than those who are not on one. Take the people on the vegetable diet as population 1.
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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Question 11: give the test statistic.
Transcribed Image Text:A statistician is trying to determine if eating a healthy vegetable diet will
help control blood pressure. The statistician compared 18 people on a
healthy vegetable diet (eat vegetables with every meal) with an average
blood pressure of 123 mmHg and a standard deviation of 10mmHg to 40
people who did not have a healthy vegetable diet. The 40 people had an
average blood pressure of 132mmHg with a standard deviation of 10
mmHg. Assume blood pressure values are normally distributed. At the
5% significance level determine if the average blood pressure of people
on a healthy vegetable diet is better than those who are not on one. Take
the people on the vegetable diet as population 1.
Transcribed Image Text:Give the test statistic.
z = -1.69
O t= -1.69
Q z = -3.17
Ot = -3.17
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