A new weight-watching company, Weight Reducers International, advertises that those who join will lose an average of 10 pounds after the first two weeks. The standard deviation is 2.8 pounds. A random sample of 50 people who joined the weight reduction program revealed a mean loss of 9 pounds. At the 0.05 level of significance, can we conclude that those joining Weight Reducers will lose less than 10 pounds? What is the conclusion regarding the null hypothesis? _________ HO. The mean weight loss is ________
A new weight-watching company, Weight Reducers International, advertises that those who join will lose an average of 10 pounds after the first two weeks. The standard deviation is 2.8 pounds. A random sample of 50 people who joined the weight reduction program revealed a mean loss of 9 pounds. At the 0.05 level of significance, can we conclude that those joining Weight Reducers will lose less than 10 pounds? What is the conclusion regarding the null hypothesis? _________ HO. The mean weight loss is ________
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A new weight-watching company, Weight Reducers International, advertises that those who join will lose an average of 10 pounds after the first two weeks. The standard deviation is 2.8 pounds. A random sample of 50 people who joined the weight reduction program revealed a mean loss of 9 pounds. At the 0.05 level of significance, can we conclude that those joining Weight Reducers will lose less than 10 pounds?
What is the conclusion regarding the null hypothesis?
_________ HO. The mean weight loss is ________
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