BASIC PRACTICE OF STATISTICS(REISSUE)>C
BASIC PRACTICE OF STATISTICS(REISSUE)>C
8th Edition
ISBN: 9781319341831
Author: Moore
Publisher: MAC HIGHER
Question
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Chapter 16.4, Problem 9AYK

(a)

To determine

To identify: The margin of error for the 95% confidence interval

(b)

To determine

To identify: The margin of error for the 95% confidence for 400 young women and 1,600 young women.

(c)

To determine

To explain: How the increase in the sample size changes the margin of error of a confidence interval when the confidence level and population standard deviation remain the same.

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Crumbs Cookies was interested in seeing if there was an association between cookie flavor and whether or not there was frosting. Given are the results of the last week's orders.   Frosting No Frosting Total Sugar Cookie 50     Red Velvet   66 136 Chocolate Chip   58   Total 220   400 Which category has the greatest joint frequency?    Chocolate chip cookies with frosting  Sugar cookies with no frosting  Chocolate chip cookies  Cookies with frosting
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