D" size batteries produced by MNM Corporation have had a life expectancy of 87 hours. Because of an improved production process, the company believes that there has been an INCREASE in the life expectancy of its D size batteries. A sample of 36 batteries showed an average life of 88.5 hours. Assume from past information that it is known that the standard deviation of the population is 9 hours. Use a .01 level of significance, and test to determine if there has been an increase in the life expectancy of the D size batteries. What is thep-value associated with the sample results? What is your conclusion, based on thep-value?

Enter the z-score as a whole number _____________________

Enter the p-value to four decimals. ________________________