Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. x1=20, s1=4, n1=12, x2=18, s2=5, n2=13a. Right-tailed test, α=0.05b. 90% confidence interval a. What are the correct hypotheses for a right-tailed test? A. H0: μ1=μ2 Ha: μ1≠μ2 B. H0: μ1 C. H0: μ1=μ2 Ha: μ1 D. H0: μ1≠μ2 Ha: μ1=μ2 E. H0: μ1>μ2 Ha: μ1=μ2 F. H0: μ1=μ2 Ha: μ1>μ2 Compute the test statistic. t=______________ (Round to three decimal places as needed.) Determine the critical value. tα=____________ (Round to three decimal places as needed.) What is the conclusion of the hypothesis test? Since the test statistic___________(is or is not) in the rejection region, __________ (reject or do not reject) H0. b. The 90% confidence interval is from _______ to ________. (Round to three decimal places as needed.)

Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test...

Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval.

x1=20,

s1=4,

n1=12,

x2=18,

s2=5,

n2=13

a. Right-tailed test, α=0.05

b. 90% confidence interval

a. What are the correct hypotheses for a right-tailed test?

A. H0: μ1=μ2 Ha: μ1≠μ2

B. H0: μ1<μ2 ha:="" μ1="">

C. H0: μ1=μ2 Ha: μ1<>

D. H0: μ1≠μ2 Ha: μ1=μ2

E. H0: μ1>μ2 Ha: μ1=μ2

F. H0: μ1=μ2 Ha: μ1>μ2

Compute the test statistic.

t=______________

(Round to three decimal places as needed.)

Determine the critical value.

tα=____________

(Round to three decimal places as needed.)

What is the conclusion of the hypothesis test?

Since the test statistic___________(is or is not) in the rejection region,

__________ (reject or do not reject) H0.

b. The 90% confidence interval is from _______ to ________.

(Round to three decimal places as needed.)

Jun 06, 2022

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Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test...

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Provided below are summary statistics for independent simple random samples from two populations. Use the pooled​ t-test and the pooled​ t-interval procedure to conduct the required hypothesis test...

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Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test...