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(a) According to this information, the mean weight loss of people on this drug, u, could be as low as Ibs. (b) If the study is repeated, how large should the sample size be so that the margin of error would be less than 1 lbs? (Assume o =9 lbs, and use at least 3 decimal places in your critical value.) ANSWER:

(a) According to this information, the mean weight loss of people on this drug, u, could be as low as Ibs. (b) If the study is repeated, how large should the sample size be so that the margin of error would be less than 1 lbs? (Assume o =9 lbs, and use at least 3 decimal places in your critical value.) ANSWER:

MATLAB: An Introduction with Applications
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 report in a research journal states that the average weight loss of people on a certain drug is 23 lbs with a margin of error of +2 Ibs with confidence level C = 95%. (a) According to this information, the mean weight loss of people on this drug, u, could be as low as Ibs. (b) If the study is repeated, how large should the sample size be so that the margin of error would be less than 1 lbs? (Assume o = 9 lbs, and use at least 3 decimal places in your critical value.) ANSWER:
Transcribed Image Text:A report in a research journal states that the average weight loss of people on a certain drug is 23 lbs with a margin of error of +2 Ibs with confidence level C = 95%. (a) According to this information, the mean weight loss of people on this drug, u, could be as low as Ibs. (b) If the study is repeated, how large should the sample size be so that the margin of error would be less than 1 lbs? (Assume o = 9 lbs, and use at least 3 decimal places in your critical value.) ANSWER:
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