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

question 12

Essay

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?

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Definitions:

Net Income

The total earnings of a company after subtracting all of its expenses, including taxes and operating expenses, from its total revenues.

Required Sales

Required sales refer to the sales volume or revenue needed to cover all fixed and variable costs of a business within a specific period.

CVP Income Statement

A variant of the income statement based on cost-volume-profit analysis, highlighting how costs and volume affect profit.

Margin of Safety

The difference between actual or projected sales and the break-even point, used as a measure of risk reduction.