Answer Happy

Exercise 9-39 Algo Consider the following hypotheses: HO: M = 14 HA: μ * 14 The population is normally distributed. A sample produces the following observations: (You may find it useful to reference the appropriate table: z table or t table) 9 17 19 11 15 13 16 Click here for the Excel Data File a. Find the mean and the standard deviation. (Round your answers to 2 decimal places.) Mean Standard deviation b. Calculate the value of the test statistic. (Round final answer to 2 decimal places.) Test statistic

c. Find the p-value. p-value Picture 0.10 0.05 Picture p-value < 0.10 0.02 Picture p-value < 0.05 0.01 Picture p-value < 0.02 p-value < 0.01 d. At the 1% significance level, what is the conclusion? Reject Ho since the p-value is greater than a. Reject Ho since the p-value is smaller than a. Do not reject Ho since the p-value is greater than a. Do not reject Ho since the p-value is smaller than a. e. Interpret the results a = 0.01. We conclude that the sample mean differs from 14. o We cannot conclude that the population mean differs from 14.

Observations 9 17 19 11 15 13 16