Question

Ten professional golfers are asked to hit each of two brands of golf ball with their...

Ten professional golfers are asked to hit each of two brands of golf ball with their drivers. The golfers do not know which brand they are hitting, and the order in which they hit the balls is determined by flipping a coin. The distances of their drives are listed in the table.

Golfer Brand 1 Brand 2
1 265 268
2 281 283
3 260 257
4 274 277
5 269 270
6 288 291
7 271 275
8 270 274
9 267 269
10 284 288

To test for a difference in the mean length of the two brands, we would use the

Select one:

a. one-sample t test.

b. matched pairs t test.

c. two-sample t test.

Homework Answers

Answer #1

Solution:

We are given that: Ten professional golfers are asked to hit each of two brands of golf ball with their drivers. The distances of their drives are measured.

We have to determine which test should be used to test for a difference in the mean length of the two brands.

Here we are measuring the distances of drives by golfers by using two different Brands of golf ball, thus subject ( golfer) in the study of two brands of golf ball is same.

That is we are taking or considering pairs of observations made on two golf ball by same subject ( golfer) Thus this is paired sample.

Thus we use Matched Pairs t test.

Thus correct option is: b. Matched Pairs t test.

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