A consumer analyst asks participants to rate the comfort of the ride for two brands of all-terrain tires: Trail Cushion and Mud Handler.Trail Cushion was rated more comfortable with a mean of 5.5 than Mud Handler with a mean of 4.3.The Type II error would be to conclude that Trail Cushion was
A) more comfortable than Mud Handler when a true difference in comfort exists.
B) no more comfortable than Mud Handler when Trail Cushion is actually more comfortable.
C) no more comfortable than Mud Handler when no difference in comfort exists.
D) more comfortable than Mud Handler when the two tires are identical in comfort.

Question

Quizplus · Accepted Answer

The Type II error is failing to reject the null hypothesis (that there is no difference in comfort) when the alternative hypothesis (that Trail Cushion is more comfortable) is actually true. In this case, the Type II error would be to conclude that Trail Cushion is no more comfortable than Mud Handler when Trail Cushion is actually more comfortable. Therefore, the best choice is B.

A Consumer Analyst Asks Participants to Rate the Comfort of the Ride