Next THREE questions are related A study by a major insurance company found that 65 percent of all drivers used cell phones while driving. Treat this finding as the population proportion. 17 In the sampling distribution of the proportion, the fraction of proportions in samples of size n = 700 drivers that fall between 0.625 and 0.675 is . A 0.8788 B 0.8584 C 0.8354 D 0.8064 18 In the previous question, the margin of error for the middle interval which captures 95% of all p̅'s from samples of size 700 is . A 0.021 B 0.024 C 0.029 D 0.035 19 In the previous question, to obtain a sampling distribution of the proportion, where 95% of the sample proportions fall within a margin of error of MOE = ±0.03 (3 percentage points) from π, the proper sample size is: A 824 B 972 C 995 D 1002 20 Consider the middle interval in the sampling distribution of p̅: (0.795, 0.845), where p̅ is the proportion obtained from random samples of teenagers who use cell phones while driving. Given an error probability of 5 percent, what is the sample size in this sampling distribution? A 849 B 886 C 908 D 955

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Next THREE questions are related
A study by a major insurance company found that 65 percent of all drivers used cell phones while driving. Treat this finding as the population proportion.
17	In the sampling distribution of the proportion, the fraction of proportions in samples of size n = 700 drivers that fall between 0.625 and 0.675 is ________.

A	0.8788
B	0.8584
C	0.8354
D	0.8064

18	In the previous question, the margin of error for the middle interval which captures 95% of all p̅'s from samples of size 700 is ________.

A	0.021
B	0.024
C	0.029
D	0.035

19	In the previous question, to obtain a sampling distribution of the proportion, where 95% of the sample proportions fall within a margin of error of MOE = ±0.03 (3 percentage points) from π, the proper sample size is:

A	824
B	972
C	995
D	1002

20	Consider the middle interval in the sampling distribution of p̅: (0.795, 0.845), where p̅ is the proportion obtained from random samples of teenagers who use cell phones while driving. Given an error probability of 5 percent, what is the sample size in this sampling distribution?


A	849
B	886
C	908
D	955

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