In a study of captive nectar-feeding bats (Leptonycteris sanborni), data were gatheredon nectar intake over a five-minute flight period. The bats were randomly selectedfor the study. Investigators are interested in the differences in weight gain for malesand females. The bats were weighed before and after feeding, and the relative weightgain was calculated for each animal using the formula: Consider constructing a 95% confidence interval for the population difference in meanweight gains for male and female bats.a) Using a graphic display of your choice, show that it is appropriate to use the tprocedure to construct a confidence interval.b) Calculate and interpret the 95% confidence interval in the context of the problem.c) Do you feel these results can be generalized to non-captive bats?
Why or whynot?

Question

In a study of captive nectar-feeding bats (Leptonycteris sanborni), data were gatheredon nectar intake over a five-minute flight period. The bats were randomly selectedfor the study. Investigators are interested in the differences in weight gain for malesand females. The bats were weighed before and after feeding, and the relative weightgain was calculated for each animal using the formula:  Consider constructing a 95% confidence interval for the population difference in meanweight gains for male and female bats.a) Using a graphic display of your choice, show that it is appropriate to use the tprocedure to construct a confidence interval.b) Calculate and interpret the 95% confidence interval in the context of the problem.c) Do you feel these results can be generalized to non-captive bats?
 Why or whynot?

Quizplus · Accepted Answer

The Answer of In a study of captive nectar-feeding bats (Leptonycteris sanborni), data were gatheredon nectar intake over a five-minute flight period. The bats were randomly selectedfor the study. Investigators are interested in the differences in weight gain for malesand females. The bats were weighed before and after feeding, and the relative weightgain was calculated for each animal using the formula:  Consider constructing a 95% confidence interval for the population difference in meanweight gains for male and female bats.a) Using a graphic display of your choice, show that it is appropriate to use the tprocedure to construct a confidence interval.b) Calculate and interpret the 95% confidence interval in the context of the problem.c) Do you feel these results can be generalized to non-captive bats?
 Why or whynot?

In a Study of Captive Nectar-Feeding Bats (Leptonycteris Sanborni), Data