Given the following hypotheses:

H₀: = 570

H₁: 570

A random sample of 13 observations is selected from a normal population. The sample mean was 580 and the sample standard deviation 3. Using the 0.10 significance level:

a. State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.)

b. Compute the value of the test statistic. (Round your answer to 3 decimal places.)

c. What is your decision regarding the null hypothesis?

multiple choice

• Reject
• Do not reject