For each of the following scenarios say whether a paired tte

For each of the following scenarios, say whether a paired t-test or a two-sample t-test would be appropriate, and why.

a. The weight of 14 patients before and after heart surgery?

c. The number of cigarettes smoked per day by 14 men who have had strokes compared with the number smoked by 14 men who have not had strokes.

e. The basal metabolic rate (BMR) of seven chimpanzees compared with the BMR of seven gorillas.

h. The photosynthetic rate of 10 randomly chosen spruce trees compared with the rate on the cedar tree growing next to each of the spruce trees.

For each of the following scenarios, say whether a paired t-test or a two-sample t-test would be appropriate, and why.

a. The weight of 14 patients before and after heart surgery?

paired t-test (paired observations, same patients measured before and after heart surgery)

c. The number of cigarettes smoked per day by 14 men who have had strokes compared with the number smoked by 14 men who have not had strokes.

two-sample t-test ( two independent groups, had strokes and have not had strokes)

e. The basal metabolic rate (BMR) of seven chimpanzees compared with the BMR of seven gorillas.

two-sample t-test ( two independent groups, seven chimpanzees compared with the BMR of seven gorillas)

h. The photosynthetic rate of 10 randomly chosen spruce trees compared with the rate on the cedar tree growing next to each of the spruce trees.

paired t-test (paired observations, spruce trees compared with the cedar tree growing next to each of the spruce trees)