Find the sample size needed to estimate the mean age of movie patrons such that it can be said with 95% confidence that the sample mean is within 1.5 years of the population mean. Assume that σ=19.4 years, based on a previous report. Should the sample be obtained from one movie at one theater?
Find the sample size needed to estimate the mean age of movie patrons such that it can be said with 95% confidence that the sample mean is within 1.5 years of the population mean. Assume that σ=19.4 years, based on a previous report. Should the sample be obtained from one movie at one theater?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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