Questions 11 and 12 are related 11As part of a statistics assignment in October to estimate the percentage of voters who would vote for a mayoral candidate, each of 500 students collects his or her own random sample of likely voters. There are 400 voters in each student’s random sample. Each student then constructs a 95 percent confidence interval for the population proportion who will vote for the candidate using his or her own random sample. Considering the 500 intervals constructed by the students, the expected number of intervals that will contain the population proportion who will vote for that candidate will be approximately: a380 b400 c475 d500 12Suppose the sample proportion of one of the students in the previous question, Beth's sample, is p̅ = 0.56. Beth's 95% interval estimate of proportion of the population of voters voting for the candidate is ______, ______ a0.510.61 b0.500.62 c0.490.63 d0.480.64

given that,size(n)=400success rate ( p )= x/n = 0.56point of estimate = proportion = 0.56

Answered: Questions 11 and 12 are related…

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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Questions 11 and 12 are related
11	As part of a statistics assignment in October to estimate the percentage of voters who would vote for a mayoral candidate, each of 500 students collects his or her own random sample of likely voters. There are 400 voters in each student’s random sample.


	Each student then constructs a 95 percent confidence interval for the population proportion who will vote for the candidate using his or her own random sample. Considering the 500 intervals constructed by the students, the expected number of intervals that will contain the population proportion who will vote for that candidate will be approximately:



a	380
b	400
c	475
d	500

12	Suppose the sample proportion of one of the students in the previous question, Beth's sample, is p̅ = 0.56. Beth's 95% interval estimate of proportion of the population of voters voting for the candidate is ______, ______

a	0.51	0.61
b	0.50	0.62
c	0.49	0.63
d	0.48	0.64

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