Scanned with CamScanner10. You wish to estimate, with 95% confidence, the proportion of senior high students in your school whoread the first book of Harry Potter. Your estimate must be accurate within 2% of the populationproportion. With no preliminary estimate available, what is the minimum sample size that you need?C. at least 2506D. at least 2605A. at least 2301B. at least 2401

Since there is no prior information about the population proportion, it is considered as p=0.5. It…

Answered: Scanned with CamScanner 10. You wish to…

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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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 81%. You would like to be 99% confident that your estimate is within 5% of the true population proportion. How large of a sample size is required? Do not round mid- calculation. n =
Calculate the proportion of the 100 samples that had at least five people own a dog. Round your answer to four decimal places. population is unknown p= .5967 n= 100
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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 12%. You would like to be 90% confident that your estimate is within 4.5% of the true population proportion. How large of a sample size is required?
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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportiòn is approximately 85%. You would like to be 99% confident that your estimate is within 2% of the true population proportion. How large of a sample size is required? Do not round mid-calculation. n =
You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the population proportion. You would like to be 99.5% confident that you esimate is within 1.5% of the true population proportion. How large of a sample size is required?
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p∗=22%p∗=22%. You would like to be 95% confident that your esimate is within 4% of the true population proportion. How large of sample size is required?
Suppose that you calculated the sample size needed to estimate a population proportion within a given margin of error and the answer came out to n = 115.26. How many items should be sampled? O 115 O 100 O 116 O 115.26
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 89%. You would like to be 99% confident that your estimate is within 2.5% of the true population proportion. How large of a sample size is required? Do not round mid-calculation.n =
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 1.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n= (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 38% of air passengers prefer an aisle seat. @ 2 S n= (Round up to the nearest integer.) x дв nd # 3 E D BO C $ R F V 5 T G 6 B Y H 7 N *99 U J . 8 DHE I M ( 9 K be O O L 1 P command Time Remaining: 01:09:52 > ; I { [ option ? | . Next 1 delete
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 56%. You would like to be 98% confident that your estimate is within 3.5% of the true population proportion. How large of a sample size is required?

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