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  3. provided below are summary statistics for independ

Provided below are summary statistics for independent simple random samples from two populations. Use the pooled?...

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Basic Math

Provided below are summary statistics for independent simplerandom samples from two populations. Use the pooled? t-test and thepooled? t-interval procedure to conduct the required hypothesistest and obtain the specified confidence interval.

x1= 18, s1= 4, n1= 21, x2= 21, s2= 5, n2=13

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

b. Compute the test statistic

. c. Determine the? P-value. d.

The 90% confidence interval is from _____ to _______ ?

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