1. A sample of n = 10 has values 4, 8, 2, 3, 2, 9, 5, 6, 12, 10. Calculate the t - statistic assuming the sample standard deviation is 2.25 and the sample came from a population with a mean of 7 for a one-tailed test that is right-tailed with a .05 level significance. Would you accept or the null hypothesis?
2. Using the information you calculated in Question 2, suppose you are now conducting a one - tailed test that is left-tailed. Would you accept or reject the null hypothesis?