Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Assuming that the population is normally distributed, construct a 90 % confidence interval for the population mean, based on the following sample size of n

Assuming that the population is normally distributed, construct a 90 % confidence interval for the population mean, based on the following sample size of n equals 6. 1, 2, 3, 4 comma 5 , and 23 Change the number 23 to 6 and recalculate the confidence interval. Using these results, describe the effect of an outlier (that is, an extreme value) on the confidence interval. Find a 90 % confidence interval for the population mean. Change the number 23 to 6. Find a 90 %confidence interval for the population mean. What is the effect of an outlier on the confidence interval? 

A. The presence of an outlier in the original data decreases the value of the sample mean and greatly inflates the sample standarddeviation, widening the confidence interval. 

B. The presence of an outlier in the original data decreases the value of the sample mean and greatly decreases the sample standard deviation, narrowing the confidence interval. 

C. The presence of an outlier in the original data increases the value of the sample mean and greatly inflates the sample standard deviation, widening the confidence interval. 

D. The presence of an outlier in the original data increases the value of the sample mean and greatly decreases the sample standarddeviation, narrowing the confidence interval.


Step by Step Solution

3.40 Rating (159 Votes )

There are 3 Steps involved in it

Step: 1

The present of an oulier in orig... blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Modeling the Dynamics of Life Calculus and Probability for Life Scientists

Authors: Frederick R. Adler

3rd edition

840064187, 978-1285225975, 128522597X, 978-0840064189

More Books

Students also viewed these Accounting questions

Question

What is the use of bootstrap program?

Answered: 1 week ago