c) Calculate the test statistic and p- value. (5 points) Sample mean= 73.44, standard error of the mean= 1.333, t=(73.44-71)/1.333 = 1.833 T statistic = 1.833 p-value = 0.7967 d) Calculate a 90% confidence interval for the population mean. (5 points) HELP e) State your conclusion and inference