Why is a sample used more often than a population?Choose the correct answer below.A. It is usually impossible to count the entire population.B. Inferences cannot be made when using the population.C. All samples are representative of a population, so the population does not need to be used.D. Sample statistics are more accurate than the population parameter.

Population: In statistics, a population is entire pool from which statistical sample is drawn And,…

Answered: Why is a sample used more often than a…

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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B Identify the sample proportion and use the symbol that represents it C. For the hypothesis test, identify the value used for the population proportion and use the symbol that represents it.
An online retailer would like to know whether the proportion of customers who visit the site and make a purchase is different than 50%. A simple random sample of customers is taken. The results of the sample are shown below.
Errors in estimating population proportions occur because? a. The p bar value is not the same as the p value b. The p bar value is the same as the p value c. The value of x bar is not equal to the value of x
A population is? Choose the correct letter. A. taken from the sample B. the same as sample. C. all items of interest in a particular study.
Don't hand writing solution.
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 5.5 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 34% of air passengers prefer an aisle seat. n = IDound un to the nearest integer)
Determine H and a from the given parameters of the population and the sample size. Round the answer to the nearest thousandth where appropriate. H-42, a 36, n=36 a. P b.σ =
Find the population mean or sample mean as indicated. Population: 8, 9, 11, 10, 7 Select the correct choice below and fill in the answer box to complete your choice. OA. x= OB. H=
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

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