P. 423: 9.18: Consider Ho: = 29 verses H: * 29. A random sample of 25 observations taken from this population produced a sample mean of 25.3. The population is normally distributed with = 8. a. Calculate the p-value. P = b. Considering the p-value of part a, would you reject the null hypothesis if the test were made at a significance level of .01? 023 c. Considering the p-value of part a, would you reject the null hypothesis if the test were made at a significance level of .025? df 1 2 3 4