(Solved): score. iv. A teacher calculates the average scores of students on a pair of tests and wishes to see ...

score. iv. A teacher calculates the average scores of students on a pair of tests and wishes to see if this average is larger than

. (b) Suppose we were not sure if the distribution of a population was normal. In which of the following circumstances would we NOT be safe using a t procedure? i. The mean and median of the data are nearly equal. ii. The sample standard deviation is large. iii. With a small sample size, a histogram of the data shows moderate skewness. iv. With a large sample size, histogram of the data shows moderate skewness.