Refer 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 is 0 at the 10% significance level? Explain the implications of your answer.
Answer to relevant QuestionsRefer to Exercise 5, where we are trying to link the unemployment rate (x) to the consumer confidence index (y). The estimated regression equation there was ˆy =162 – 12x. Can we reject the hypothesis that the population ...Refer to Exercise 45. With the sample evidence available, could we reject a β = – 5.0 null hypothesis at the 5% significance level? Refer to Exercise 10 (too much information). The estimated regression equation turned out to be ˆy = 66 – 6.8x. Show the 95% confidence interval estimate of the average confidence score for a population of shoppers who ...Plot the data and show the least squares line and the corresponding estimated regression equation. Given the line that you’ve drawn, about how much do support costs appear to increase with each 1000 square foot increase in ...Compute the standard error of estimate (syx) for the least squares line you produced in Exercise 68. Trenton Bank has a scoring system that it uses to evaluate new loan applications. You’ve been tracking the number of late ...
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