# Question: Refer to the previous exercise Of the 100 homes 25

Refer to the previous exercise. Of the 100 homes, 25 were in a part of town considered less desirable. For a regression analysis using y = selling price and x = size of house for these 25 homes,

a. You plan to test H0: β = 0 against Ha: β > 0. Explain what H0 means, and explain why a data analyst might choose a one-sided Ha for this test.

b. For this one-sided alternative hypothesis, how large would the t test statistic need to be in order to get a P-value equal to

(i) 0.05 and

(ii) 0.01?

a. You plan to test H0: β = 0 against Ha: β > 0. Explain what H0 means, and explain why a data analyst might choose a one-sided Ha for this test.

b. For this one-sided alternative hypothesis, how large would the t test statistic need to be in order to get a P-value equal to

(i) 0.05 and

(ii) 0.01?

## Answer to relevant Questions

The high school female athlete strength study also considered prediction of y = maximum leg press (LP) using x = number of 200-pound leg presses (LP_200). MINITAB results of a regression analysis are shown. a. Show all steps ...Suppose the regression line μy = -10,000 + 1000x models the relationship for the population of working adults in Canada between x = age and the mean of y = annual income (in Canadian dollars). The conditional distribution ...The House Selling Prices FL data file on the text CD has several predictors of house selling prices. The table here shows the ANOVA table for a regression analysis of y = the selling price (in thousands of dollars) and x = ...For a random sample of U.S. counties, the ANOVA table shown refers to hypothetical data on x = percentage of the population aged over 50 and y = per capita expenditure (dollars) on education. a. Fill in the blanks in the ...Ecologists believe that organic material decays over time according to an exponential decay model. This is the case 0 < β < 1 in the exponential regression model, for which μy decreases over time. The rate of decay is ...Post your question