Intro Stats
4th Edition
ISBN: 9780321825278
Author: Richard D. De Veaux, Paul F. Velleman, David E. Bock
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 8E
Character recognition, again The automatic character recognition device discussed in Exercise 4 successfully reads about 85% of handwritten credit card applications. In Exercise 4, you looked at the histograms showing distributions of sample proportions from 1000 simulated samples of size 20, 50, 75, and 100. The sample statistics and theoretical values for each simulation are as follows:
- a) Looking at the histograms in Exercise 4, at what
sample size would you be comfortable using the Normal model as an approximation for the sampling distribution? - b) What does the Success/Failure Condition say about the choice you made in part a?
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Chapter 15 Solutions
Intro Stats
Ch. 15.2 - You want to poll a random sample of 100 students...Ch. 15.2 - Prob. 2JCCh. 15.2 - If you think that about half the students are in...Ch. 15.5 - Prob. 4JCCh. 15.5 - Prob. 5JCCh. 15.5 - Prob. 6JCCh. 15.5 - Prob. 7JCCh. 15 - Website An investment company is planning to...Ch. 15 - Marketing The proportion of adult women in the...Ch. 15 - Prob. 3E
Ch. 15 - Character recognition An automatic character...Ch. 15 - Prob. 5ECh. 15 - Prob. 6ECh. 15 - Send more money The philanthropic organization in...Ch. 15 - Character recognition, again The automatic...Ch. 15 - Prob. 9ECh. 15 - Prob. 10ECh. 15 - Prob. 11ECh. 15 - Prob. 12ECh. 15 - Prob. 13ECh. 15 - Prob. 14ECh. 15 - Prob. 15ECh. 15 - Prob. 16ECh. 15 - Prob. 17ECh. 15 - Prob. 18ECh. 15 - 19. More coins Suppose the class in Exercise 17...Ch. 15 - 20. Bigger bag Suppose the class in Exercise 18...Ch. 15 - Prob. 21ECh. 15 - Prob. 22ECh. 15 - Prob. 23ECh. 15 - Prob. 24ECh. 15 - Prob. 25ECh. 15 - Prob. 26ECh. 15 - Prob. 27ECh. 15 - Prob. 28ECh. 15 - Prob. 29ECh. 15 - Prob. 30ECh. 15 - Prob. 31ECh. 15 - Prob. 32ECh. 15 - 33. Polling Just before a referendum on a school...Ch. 15 - Prob. 34ECh. 15 - Prob. 36ECh. 15 - Prob. 37ECh. 15 - 38. Meals A restaurateur anticipates serving about...Ch. 15 - Prob. 39ECh. 15 - Prob. 40ECh. 15 - Prob. 41ECh. 15 - CEO compensation The total compensation of the...Ch. 15 - Prob. 43ECh. 15 - Prob. 44ECh. 15 - GPAs A colleges data about the incoming freshmen...Ch. 15 - Prob. 46ECh. 15 - Lucky spot? A reporter working on a story about...Ch. 15 - Prob. 48ECh. 15 - Pregnancy Assume that the duration of human...Ch. 15 - Rainfall Statistics from Cornells Northeast...Ch. 15 - Prob. 51ECh. 15 - Prob. 52ECh. 15 - Prob. 53ECh. 15 - Prob. 54ECh. 15 - 55. AP Stats 2011 The College Board reported the...Ch. 15 - Prob. 56ECh. 15 - Prob. 57ECh. 15 - Prob. 58ECh. 15 - Prob. 59ECh. 15 - 60. Potato chips The weight of potato chips in a...Ch. 15 - Prob. 61ECh. 15 - 62. Milk Although most of us buy milk by the quart...
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