Because the sample size is 9, do you need to be concerned about the shape of the population distribution when conducting the t test in (a)? explain. choose the correct answer below. a. with a small sample size, it is difficult to evaluate the assumption of normality. however, the distribution may be symmetric because the mean and the median are close in value. b. with a small sample size, it is difficult to evaluate the assumption that the distribution follows the student's t distribution. however, the distribution may be symmetric because the mean and the median are close in value. c. with a small sample size, it is difficult to evaluate the assumption