• 0
Votes
name

A PHP Error was encountered

Severity: Notice

Message: Undefined index: userid

Filename: views/question.php

Line Number: 212

Backtrace:

File: /home/mycocrkc/statisticsanswered.com/application/views/question.php
Line: 212
Function: _error_handler

File: /home/mycocrkc/statisticsanswered.com/application/controllers/Questions.php
Line: 416
Function: view

File: /home/mycocrkc/statisticsanswered.com/index.php
Line: 315
Function: require_once

Independent random samples were selected from each of two normally distributed populations, n = 25 from population 1 and n = 11 from population 2. The means and variances for the two samples are shown in the table to the right.

 

a. Test the null hypothesis Ho :sigma1^2 = sigma2^2 against the alternative hypothesis 
Ha: sigma1^2 != sigma2^2. use alpha = 0.10. 

a. The test statistic is F= 
b. The critical value is ?

Is there sufficient evidence to reject the null hypothesis?

A. Reject Ho. There is sufficient evidence to indicate a difference between the population variances.
B. Do not reject Ho. There is insufficient evidence to indicate a difference between the population variances. 
C. Do not reject Ho. There is sufficient evidence to indicate a difference between the population variances.
D. Reject Ho. There is insufficient evidence to indicate a difference between the population variances.

b. Find and interpret the approximate p-value of the test.