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8) (3 pts) Schlitz has been told that every thousand dollars added to the median household income should increase the page cost by less than $750. She wishes to test whether the regression provides convincing evidence to reject this claim. Therefore, she should test a) H0: βINCOME = -0.750 versus Ha: βINCOME < -0.750 b) H0: βINCOME = 0.750 versus Ha: βINCOME < 0.750 c) H0: βINCOME = -0.750 versus Ha: βINCOME ≠ -0.750 d) H0: βINCOME = 0.750 versus Ha: βINCOME ≠ 0.750 e) H0: βINCOME = -0.750 versus Ha: βINCOME > -0.750 f) H0: βINCOME = 0.750 versus Ha: βINCOME > 0.750 9) (3 pts) Schlitz is intrigued by the number 16.9149, which appears near the top of the regression output and is labeled as “Standard Error.” Which is the most accurate interpretation of this number? (choose one) a) 16.9149% of the variation in the PAGECOST variable can be explained by this regression. b) It measures the precision with which the regression has estimated the intercept coefficient. c) It is the standard deviation of the population parameter μ. d) It is the standard deviation of the residuals. 10) (2 pts) Schlitz is thinking of adding another explanatory variable to her regression (the actual numeric ratings from Media Journal). How will the standard error of the estimate change? (choose one): a) It will increase. b) It will decrease. c) It may increase or may decrease. d) It will definitely stay the same. 11) (3 pts) Suppose Schlitz ran a second regression of PAGECOST versus INCOME and RATING. Consider a plot of PAGECOST versus INCOME in which we represent the “above average rating” predictions with a red line and the “below average rating” predictions with a white line. Which is true? a) The intercepts of the red line and white line will be the same, but the slopes might be different. b) The slopes of the red line and the white line will be the same, but the intercepts might be different. c) The red and white lines will be identical. d) The red and white lines will have different intercepts and different slopes. 12) (1 pts) Suppose Schlitz runs a simple regression of PAGECOST versus DIE, where for DIE she enters the outcomes of 55 rolls of a 6-sided die. What is the probability that the resulting F-test indicates a significant regression at the 5% level? a) 0.00 b) 0.01 c) 0.05 d) 0.10 e) None of the above 13) (2 pts) Schlitz believes that using the “standard error of the estimate” to calculate an approximate prediction interval gives an under-estimate of the length of the true interval. This is a) True b) False c) Sometimes true and sometimes false. 14) (3 pts) If Schlitz’s regression suffers from multi-collinearity, it means that a) Residual errors are highly correlated with an explanatory variable b) An explanatory variable is highly correlated with the dependent variable c) Two or more explanatory variables are highly correlated with each other. d) Residual errors are highly correlated with the dependent variable e) There is a problem with covariation 15. (3 pts) A correlation analysis between sales and sales training scores results in correlation coefficient, R = +0.98. Which of the following best interprets the relationship between sales and sales training? a) 98% of the salespeople taking the test have higher sales b) the correlation between sales and sales training is very weak and insignificant c) the correlation between sales and sales training is strong and positive d) 98% of the variation in sales is explained by variations in sales training scores e) none of the above 16. (2 pts) Which of the following best describes the sampling distribution of the mean? a) it is the frequency distribution for all of the elements of the population b) it is a probability distribution of the means of varying sample sizes for relevant populations c) it is a probability distribution of the means of all possible samples of a given size drawn from a particular population d) none of the above e) (A), (B) and (C)

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Show all steps please Use Binomial Series to expand the expression (1+x?)' into a polynomial.

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The following transactions are from Ohlm Company. (Use 360 days a year.) Year 1 Dec. 16...

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Problem 10-18 Interest Rate RIS (LUS, CP44) 10 points Bond J has a coupon of 74...

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During isolation of b-carotene, if some of the sodium sulfate spilled over into the round bottom...

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I. Suppose we have a simple random sample from x,, , x, which have mean μ-E(X) and variance = tar Find (a) E ((X-μ)2 (d) E ((X-μ)2), where 1--ΣΧ, I. Suppose we have a simple random sample fr...

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Determine the point estimate of the population mean and margin of error for the confidence interval....

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Harlan Corporation deposits $100,000 every June 30th and December 31st in a savings account (beginning in the current y...

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Steam at 100° C is added to ice at 0° C. Find the amount of ice...

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Classify each of the following unemployment situations as either cyclical, frictional, or structural unemployment. Items (7...

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D L/2 G L/2 B MO A uniform slender rod of mass M=10 kg and length...

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A Suppose you are an investment analyst. One of your client is looking for 3 following...

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