Question

Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses, level of significance α, and sample sizes n1 and n2. Assume that the samples are independent, normal, and random. Answer parts (a) and (b). Ha: μ1 < μ2, α=0.005, n1=12, n2=10 a) Find the critical value(s) assuming that the population variances are equal. b)a) Find the critical value(s) assuming that the population variances are not equal.

Name: use the t distribution table to find the critical values for the indicated alternative hypotheses level of significance and sample sizes n1 and n2 assume that the samples are independent nor 87687
Uploaded: 2022-08-25T11:02:06-08:00
Duration: 2 min 49 s
Channel: Qudsiya Anis
Description: use the t distribution table to find the critical values for the indicated alternative hypotheses level of significance and sample sizes n1 and n2 assume that the samples are independent nor 87687

          Use the t-distribution table to find the
critical value(s) for the indicated
alternative hypotheses, level of significance α, and sample
sizes n1 and n2.
Assume that the samples are independent, normal, and
random. Answer parts (a) and (b). Ha: μ1 < μ2,
α=0.005, n1=12, n2=10
a) Find the critical value(s) assuming that the population
variances are equal.
b)a) Find the critical value(s) assuming that the
population variances are not equal.

Added by Jacob S.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Qudsiya Anis

08/25/2022

Step 1

The degrees of freedom in this case is n1 + n2 - 2 = 12 + 10 - 2 = 20. For a one-tailed test (since Ha: μ1 < μ2) at α=0.005, we look up this value in the t-distribution table. The critical value is -2.845. Show more…

Show all steps

Thanks for your feedback!

Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses, level of significance α, and sample sizes n1 and n2. Assume that the samples are independent, normal, and random. Answer parts (a) and (b). Ha: μ1 < μ2, α=0.005, n1=12, n2=10 a) Find the critical value(s) assuming that the population variances are equal. b)a) Find the critical value(s) assuming that the population variances are not equal.