Given the following hypotheses:

H₀: 12

H₁: > 12

A random sample of 10 observations is selected from a normal population. The sample mean was 16 and the sample standard deviation 3.4. Using the 0.01 significance level:

a. State the decision rule. (Round your answer to 3 decimal places.)

Reject H0 if t >_________

b. Compute the value of the test statistics (negative answers should be indicated by a minus sign. Round your answer to 3 decimal places)

Value of the test statistic _________