- Download the Excel spreadsheet Bumpus.xls for this question. In 1898, Hermon Bumpus studied a number of house sparrows that were brought to the Anatomical Laboratory of Brown University after an uncommonly severe winter storm. 35 birds survived and 24 perished.
- In the spreadsheet, the weights of birds in grams (g) are given.
- Is there a significant difference between the weights of the sparrows that perished and the weights of the sparrows that survived?
- Using a t-test of independent samples (let alpha = 0.05), answer the following.
Critical value of t = (hint: this is a two-tailed test)
Should you reject the null hypothesis? (yes or no)