People who diet can expect to lose an average of 3kg in a month. In a book, the authors claim that people who follow a new diet will lose an average of less than 3kg in a month. The weight losses of the 180 people in a random sample who had followed the new diet for a month were noted. The mean was 2.7 kg and the standard deviation was 2.8kg. Test the authors’ claim at the 5% significance level, stating your null and alternative hypotheses.
People who diet can expect to lose an average of 3kg in a month. In a book, the authors claim that people who follow a new diet will lose an average of less than 3kg in a month. The weight losses of the 180 people in a random sample who had followed the new diet for a month were noted. The mean was 2.7 kg and the standard deviation was 2.8kg. Test the authors’ claim at the 5% significance level, stating your null and alternative hypotheses.
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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People who diet can expect to lose an average of 3kg in a month. In a book, the authors
claim that people who follow a new diet will lose an average of less than 3kg in a month.
The weight losses of the 180 people in a random sample who had followed the new diet
for a month were noted. The mean was 2.7 kg and the standard deviation was 2.8kg.
Test the authors’ claim at the 5% significance level, stating your null and alternative
hypotheses.
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