Chapter 20, Problem 56E

(a)

To determine

Check whether the statement “98% of top loaders are 22 to 40 minutes faster than front loaders” is true or false.

(b)

To determine

Check whether the statement “If I choose the laundromat’s top loader, there is a 98% chance that my clothes will be done faster than if I had chosen the front loader.” is true or false.

(c)

To determine

Check whether the statement “If I tried more samples of both kinds of washing machines, in about 98% of these samples I’d expect the top loaders to be an average of 22 to 40 minutes faster” is true or false.

(d)

To determine

Check whether the statement “If I tried more samples, I’d expect about 98% of the resulting confidence intervals to include the true difference in mean cycle time for the two types of washing machines.” is true or false.

(e)

To determine

Check whether the statement “I am 98% confident that top loaders wash clothes an average of 22 to 40 minutes faster than front-loading machines.” is true or false.