There is a claim that the population mean is equal to 25. A sample of 16 items has a mean length of 25.8. The standard deviation of population is 1.8. The claim is to be tested at 2.5% level of significance. Answer the following questions. 1. (3 points) Write the hypothesis Null Hypothesis: Alternative hypothesis: 2. (1 point) Write the value of a = 3. (3 points) Obtain the critical value (s) of z from normal table. z (critical) = 4. (3 points) Write the rule for testing. Rule: 5. (6 points) Compute the z (z-stat) value from sample data. z (stat) = 6. (2 points) Write the decision. Reject (or Do not reject)