Based on previous school records, the standard deviation of the height of Grade 10 students in a particular city is 1.2 inches. A researcher wanted to be sure on estimating the population mean height to within 0.035 of its true value. Using a 95% confidence interval, find the sample size that the researcher needs.

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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Based on previous school records, the standard deviation of the height of
Grade 10 students in a particular city is 1.2 inches. A researcher wanted to be sure
on estimating the population mean height to within 0.035 of its true value. Using a
95% confidence interval, find the sample size that the researcher needs.
Transcribed Image Text:Based on previous school records, the standard deviation of the height of Grade 10 students in a particular city is 1.2 inches. A researcher wanted to be sure on estimating the population mean height to within 0.035 of its true value. Using a 95% confidence interval, find the sample size that the researcher needs.
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