Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

he null and alternate hypotheses are: H0:12=0H0:12=0 H1:120H1:120 A random sample of 22 observations from the first population revealed a sample mean of 334 and

he null and alternate hypotheses are:

H0:12=0H0:12=0

H1:120H1:120

A random sample of 22 observations from the first population revealed a sample mean of 334 and a sample standard deviation of 11. A random sample of 23 observations from the second population revealed a sample mean of 325 and a sample standard deviation of 15.

At the 0.05 significance level, is there a difference in the population means?

a. State the decision rule. (Negative answer should be indicated by a minus sign. Round the final answers to 3 decimal places.)

The decision rule is to reject H0ift< or > .

This is a (Click to select) two one -tailed test.

b. Compute the pooled estimate of the population variance. (Round the final answer to 2 decimal places.)

Pooled estimate of the population variance

c. Compute the test statistic. (Round the final answer to 3 decimal places.)

The test statistic is: t = .

d. What is your decision regarding H0?

H0is (Click to select) not rejected rejected .

e. Estimate the p-value. (Round the final answer to 4 decimal places.)

The p-value is .

Step by Step Solution

There are 3 Steps involved in it

Step: 1

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

Elementary Algebra Concepts & Applications

Authors: Marvin L Bittinger, David J Ellenbogen, Barbara L Johnson

9th Edition

0321877926, 9780321877925

More Books

Students also viewed these Mathematics questions

Question

Implications of conflict of interest for social worker

Answered: 1 week ago