1. A simple random sample of 100 observations was taken from a large population. The sample mean and the standard deviation were determined to be 80 and 14 respectively. The standard error of the mean is
a. 8.0 b. 1.4 c. 14 d. 0.8
2. How many simple random samples of size 3 can be selected from a population of size 6?
a. 35 b. 3 c.6 d. 20
3. Computers can be used for generating random numbers. This statement is
a. never true b. sometimes true c. False d. true