Samples are taken from two populations, A and B, with the following results.

I. Test the claim that the two means are the same at the 1 percent level of significance (Test the claim than the means are the same assuming σ₁ ≠ σ₂) Be sure to fill the entire page:

List

• the knowns, 
• the null and alternative hypothesis,
• the critical value,  
• the test statistics and
• draw the graph and label the test statistic, critical value and rejection regions.

Reject or fail to reject?

State the conclusion as outlined in the book or hypothesis test template.

II.  Construct the confidence interval assuming σ₁ ≠ σ₂.

III. Construct the confidence interval assuming σ₁ = σ

Samples are taken from two populations, A and B, with the following results.

I. Test the claim that the two means are the same at the 1 percent level of significance (Test the claim than the means are the same assuming σ₁ ≠ σ₂) Be sure to fill the entire page:

List

• the knowns, 
• the null and alternative hypothesis,
• the critical value,  
• the test statistics and
• draw the graph and label the test statistic, critical value and rejection regions.

Reject or fail to reject?

State the conclusion as outlined in the book or hypothesis test template.

 (Links to an external site.)

Your hypothesis test must take up one whole (8 1/2″ x 11″) page (no more and no less), typed or written and should be neat.

II.  Construct the confidence interval assuming σ₁ ≠ σ₂.

III. Construct the confidence interval assuming σ₁ = σ