Estimate a linear regression model for mutual fund losses on November 13, 1989, on previous gains in

Question:

Estimate a linear regression model for mutual fund losses on November 13, 1989, on previous gains in 1989, using the data file New York Stock Exchange Gains and Losses. Test, against a two-sided alternative, the null hypothesis that mutual fund losses on Friday, November 13, 1989, did not depend linearly on previous gains in 1989.