Refer to Exercise 3 where we are trying to link mortgage interest rate (x) to home sales (y). The estimated regression equation there was ˆy = 90 – 4x. Can we reject the null hypothesis that the population slope, is 0 at the 1% significance level? Explain the implications of your answer.
Answer to relevant QuestionsRefer to Exercise 4, where we are trying to link average hourly wage (x) to employee turnover (y). The estimated regression equation there was ˆy =139.2 – 6.7x. Can we reject the null hypothesis that the population slope ...Refer to Exercise 44. With the sample evidence available, could we reject a 1.0 null hypothesis at the 5% significance level? Refer to Exercise 8 (hedge fund returns and administrator compensation). The estimated regression equation turned out to be ˆy = 2.2 + .55x. Show the 95% confidence interval estimate of the expected compensation for the ...Buyers from online mega retailer Amazon.com use a star rating to rate products and sellers. You plan to use simple linear regression to link average star rating (x) to average daily sales (y) for Amazon sellers of consumer ...Plot the data and show the least squares line and the corresponding estimated regression equation. Given the line you’ve drawn, about how much does the number of late or missed payments appear to fall as credit score ...
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