A random sample of 10 observations was drawn from a large normally distributed population. The data is below.

25, 23, 16, 16, 23, 17, 26, 20, 18, 19

Test to determine if we can infer at the 1% significance level that the population mean is not equal to 21, filling in the requested information below.

A. The value of the standardized test statistic:

Note: For the next part, your answer should use interval notation. An answer of the form (,a)(,a) is expressed (-infty, a), an answer of the form (b,)(b,) is expressed (b, infty), and an answer of the form (,a)(b,)(,a)(b,) is expressed (-infty, a)U(b, infty).

B. The rejection region for the standardized test statistic:

C. The p-value is:

D. Your decision for the hypothesis test: A. Do Not Reject H1. B. Reject H0. C. Reject H1. D. Do Not Reject H0.