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What can we conclude if the global test of regression does not reject the null hypothesis? Select one: O a. A strong relationship exists among the variables O b. No relationship exists between the dependent variable and any of the independent variables c. The independent variables are good predictors O d. Good forecasts are possible Clear my choiceIf the correlation between two variables is close to one, the association is Select one: O a. strong. b. moderate. O c. weak. O d. none. Clear my choiceIn the least squares equation, Y = 1t] + 20.1\" the value cf 20 indicates Select one: D a. the Iif'intercept. D b. for each un'rt increase in x: '1" increases by 20. D c. for each un'rt increase in V, X increases by 2D. D [1. none Of these. Great Plains Distributors, Inc. sells roong and siding products to home improvement retailers. such as Lowe's and Home Depot, and commercial contractors. The owner is interested in studying the effects of several variables on the sales volume of fibercement siding products. The companyr has 26 marketing districls across the United States. In each district, it collected information on the following variables: sales volume {in dollars}. advertising dolla rs, number of active accounts, number of competing bra nd s, and a rating of market potential. Partial data is shown below. what is the expected effect on sales volume of fiber-cement siding products will be when market potential decreases? a. Sales will increase I}. Sales will decrease c. He effect on sales A sales manager for an advertising agency believes there is a relationship between the number of contacts and the amount of the sales. To verify this belief, the following data was collected: Salesperson NumberOfContacts Sales(in 000) 14 24 12 14 20 28 16 30 46 80 23 30 48 90 50 85 55 120 10 50 110 Mark Siders is one of the salespersons. If he makes 30 calls, what is the 95% interval estimate of true sales he will make? Select one: O a. 55.8, 51.5 O b. 51.4, 55.9 O c. 46.7, 60.6 O d. 31.1, 76.2A sales manager for an advertising agenoyr believes there is a relationship between the number of contacts and the amount of the sales. To ven'fy this belief, the following data was oollected: Easasaass 1 2 3 4 5- E T E 5' 1|;I Sgt'dgEBlE What is the slope of the linear equation? Select one: C] a. -12.2[l1 C] [1. 12.201 {:1 I3. 2.1946 G [:l. -2.194ti a. sales manager for an advertising agency believes there is a relationship between the number of contacts and the amount of the sales. To verily this belief, the following data was oollected: Eaaaaaass" 14 12 El 15 45 23 4B 50 55 50 1 2 3 4 5 E T E 9 1D For each sales oontact a particular person makes, given a 9596 oondence level: the actual amount of sales is expected to: Select one: D a. Decrease between 31.3 and "IE-.23 thousand units 0 b. Increase between 31.8 and NEED thousand units 0 c. Decrease between 1.?9 and 2.5 thousand units 0 d. Increase between 1.?9 and 2.6 thousand units 0 e. Increase between 2.93. and 2133 thousand units A sales manager for an advertising agencyr believes there is a relationship between the number of contacts and the amount of the sales. To verifyr this belief, the followi ng data was collected: Eaaacaaca 1 2 3 4 5 E 3" E 9 1D Sgdggi If all of the salespeople make 30 calls each, what is the 95% interval estimate for the true average amount of sales per salesperson? Select one: D a. 55.5, 51.5 D b. 514,559 C] c. 463', 513.5 C] d. 31.1, 1'62 A sales manager for an advertising agency believes there is a relationship between the number of contacts and the amount of the sales. To verily this belief, the following data was oollected: Eaaaaaasa 1 14 2 12 a 211 4 15 5 4a a 23 2 4a a so 9 ss 1::- so For each sales oontact a particular person makes, the amount of sales is expected to: Select one: C' a. Decrease by 2.195 thousand units C' b. Increase by 2.195 thousand units 0 c. Decrease by 12.2D1 thousand units 0 d. Increase by 12.2511 thousand units
