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Problem no. 2 A novel had more than 500 pages and a random sample of 35 pages of the novel was taken, and the number of words on each page counted. The mean number of words for the sample was 423 words. and the standard deviation was 48.4 words. Calculate (correct to the nearest whole number) 90% confidence interval for the mean number of words for the pages of the entire novel.

Problem no. 2 A novel had more than 500 pages and a random sample of 35 pages of the novel was taken, and the number of words on each page counted. The mean number of words for the sample was 423 words. and the standard deviation was 48.4 words. Calculate (correct to the nearest whole number) 90% confidence interval for the mean number of words for the pages of the entire novel.

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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Problem no. 2 A novel had more than 500 pages and a random sample of 35 pages of the novel was taken, and the number of words on each page counted. The mean number of words for the sample was 423 words. and the standard deviation was 48.4 words. Calculate (correct to the nearest whole number) 90% confidence interval for the mean number of words for the pages of the entire novel.
Transcribed Image Text:Problem no. 2 A novel had more than 500 pages and a random sample of 35 pages of the novel was taken, and the number of words on each page counted. The mean number of words for the sample was 423 words. and the standard deviation was 48.4 words. Calculate (correct to the nearest whole number) 90% confidence interval for the mean number of words for the pages of the entire novel.
Problem no. 3 • Vendors of seafoods wishes to estimate the average profit they can earn per week. The standard deviation from a previous income is Php10,500. How large a sample must be selected if they wants to be 95% confident of finding whether the true mean differs from the sample mean by Php100?
Transcribed Image Text:Problem no. 3 • Vendors of seafoods wishes to estimate the average profit they can earn per week. The standard deviation from a previous income is Php10,500. How large a sample must be selected if they wants to be 95% confident of finding whether the true mean differs from the sample mean by Php100?
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