Allied Corporation is trying to determine whether to purchase Machine A or B. It has leased the
Question:
Allied Corporation is trying to determine whether to purchase Machine A or B. It has leased the two machines for a month. A random sample of 5 employees has been taken. These employees have gone through a training session on both machines. Below you are given information on their productivity rate on both machines. (Let the difference "d" be d = A - B.).
Person MACHINE A PRODUCTIVITY MACHINE B PRODUCTIVITY
1 47 52
2 53 58
3 50 47
4 52 57
5 45 53
a. State the null and alternative hypotheses for a two-tailed test.
b. Find the mean and standard deviation for the difference.
c. Compute the test statistic.
d. Test the null hypothesis stated in Part a at the 8% level.
Elementary Statistics
ISBN: 978-0538733502
11th edition
Authors: Robert R. Johnson, Patricia J. Kuby