Question

Four golfers are asked to play a round of golf each on two consecutive Saturday afternoons. During the first round, one of two club types is to be used. During the second round, another club type is to be used. The order in which a golfer uses each brand is determined randomly. Scores are recorded. The results are given below.

Golfer	Brand 1	Brand 2
1	93	95
2	88	86
3	112	111
4	79	77

To determine if the mean scores differ by brand of club, we would use

  

the one-sample t test.

   

the matched pairs t test.

   

the two-sample t test.

   

Any of the choices is valid. It is at the experimenter’s discretion.

Answer 1

t test Ho:A-y2 Ha.ju' キju2 veY.8 us, (9 3-92,2「)