a) Using a sample size of 75, construct a 95% confidence interval estimate of the mean birth weight in the Apple County. b) Using a sample size of 75,000, construct a 95% confidence interval estimate of the mean birth weight in the Apple County. c) Which of the preceding confidence intervals is wider? Why?
a) Using a sample size of 75, construct a 95% confidence interval estimate of the mean birth weight in the Apple County. b) Using a sample size of 75,000, construct a 95% confidence interval estimate of the mean birth weight in the Apple County. c) Which of the preceding confidence intervals is wider? Why?
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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Transcribed Image Text:1.
A study has been conducted to verify the mean of birth weight at Apple County. From the
simple random sample collected, the mean was 3.433 kg and the standard deviation of all
birth weights is 495 g.
a) Using a sample size of 75, construct a 95% confidence interval estimate of the mean
birth weight in the Apple County.
b) Using a sample size of 75,000, construct a 95% confidence interval estimate of the
mean birth weight in the Apple County.
c) Which of the preceding confidence intervals is wider? Why?
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