A simple random sample with n= 52 provided a sample mean of 24.0 and a sample standard deviation of 4.6. a. Develop a 90% confidence interval for the population mean (to 1 decimal). b. Develop a 95% confidence interval for the population mean (to 1 decimal). c. Develop a 99% confidence interval for the population mean (to 1 decimal). d. What happens to the margin of error and the confidence interval as the confidence level is increased? - Select your answer - They increase They decrease They stay the same It cannot be determined from the given data The margin of error increases and the confidence interval becomes narrower The margin of error decreases and the confidence interval becomes wider

A simple random sample with n= 52 provided a sample mean of 24.0 and a sample standard deviation of 4.6. a. Develop a 90% confidence interval for the population mean (to 1 decimal). b. Develop a 95% confidence interval for the population mean (to 1 decimal). c. Develop a 99% confidence interval for the population mean (to 1 decimal). d. What happens to the margin of error and the confidence interval as the confidence level is increased? - Select your answer - They increase They decrease They stay the same It cannot be determined from the given data The margin of error increases and the confidence interval becomes narrower The margin of error decreases and the confidence interval becomes wider

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

A simple random sample with n =
52 provided a sample mean of 24.0 and a sample standard deviation of 4.6.
a. Develop a 90% confidence interval for the population mean (to 1 decimal).
b. Develop a 95% confidence interval for the population mean (to 1 decimal).
c. Develop a 99% confidence interval for the population mean (to 1 decimal).
d. What happens to the margin of error and the confidence interval as the confidence level is increased?
V - Select your answer -
They increase
They decrease
They stay the same
It cannot be determined from the given data
The margin of error increases and the confidence interval becomes narrower
The margin of error decreases and the confidence interval becomes wider

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