Question: 2.10. A computer program has produced the following output for a hypothesis-testing problem: (a) What is the missing value for the standard error? (b) Is

2.10. A computer program has produced the following output for a hypothesis-testing problem:

Difference in sample means: 11.5 Degrees of freedom: 24 Standard error of

(a) What is the missing value for the standard error?

(b) Is this a two-sided or a one-sided test?

(c) If ( $ 0.05, what are your conclusions?

(d) Find a 95% two-sided CI on the difference in means.

Difference in sample means: 11.5 Degrees of freedom: 24 Standard error of the difference in sample means: Test statistic: to 1.88 P-value: 0.0723

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