because the sample size is 81, 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. no, because n is equal to 81, the sampling distribution of the t test is approximately normal. in general, the t test is appropriate for a large sample size. b. yes, because n is equal to 81, the sampling distribution of the t test cannot be determined. in general, the t test is only appropriate for a normally distributed sample. c. no, because n is equal to 81, the sampling distribution of the t test is approximately normal. in general, the t test is appropriate for this sample size unless the population is skewed. d. yes, because n is equal to 81, the sampling distribution of the t test cannot be determined. in general, the t test requires a larger sample size.