Regression Question 1 Consider the following sample data for the relationship between advertising bu Observation 1 2 3 4 5 Advertising ($) 90,000 100,000 100,000 110,000 120,000 Sales ($) 535,000 626,000 625,000 674,000 712,000 What is the slope of the "least-squares" best-fit regression line? Please round your answer to the nearest hundredth. Note that the correct answer will be evaluated based on the full-precision resul Question 2 Consider the following sample data for the relationship between advertising bu Observation 1 2 3 4 5 Advertising ($) 30,000 30,000 40,000 50,000 50,000 Sales ($) 179,000 183,000 253,000 308,000 301,000 What is the predicted sales quantity for an advertising budget of $57,000? Please round your answer to the nearest integer. Note that the correct answer will be evaluated based on the full-precision resul Question 3 Consider the following sample data for the relationship between advertising bu Observation 1 2 3 4 5 Advertising ($) 40,000 50,000 50,000 60,000 70,000 Sales ($) 240,000 308,000 315,000 358,000 425,000 What is the R2 coefficient of determination value for the relationship betw Please round your answer to the nearest hundredth. Note that the correct answer will be evaluated based on the full-precision resul Sampling Question 1 Sales volume last weekend for a sample of ten car dealerships were as follows: Data Point 1 2 3 4 5 # Sales 23 13 37 46 20 What is the mean of the sample data? Please round your answer to the nearest tenth. Note that the correct answer will be evaluated based on the full-precision resul Qusetion 2 Sales volume last weekend for a sample of ten car dealerships were as follows: Data Point 1 2 3 4 5 # Sales 21 10 19 35 23 What is the variance of the sample data? Please round your answer to the nearest tenth. Note that the correct answer will be evaluated based on the full-precision resul Question 3 Sales volume last weekend for four samples, each consisting Data Point 1 2 3 4 Sample 1 26 45 36 28 Sample 2 15 31 17 24 Sample 3 25 43 17 39 Sample 4 32 35 50 33 of five car dealers 5 46 43 28 27 What is the mean of the distribution of sample means? Please round your answer to the nearest tenth. Note that the correct answer will be evaluated based on the full-precision resul Question 4 Sales volume last weekend for four samples, each consisting Data Point 1 2 3 4 Sample 1 23 13 37 46 Sample 2 15 26 45 33 Sample 3 44 23 35 18 Sample 4 48 37 21 30 of five car dealers 5 20 38 29 19 What is the standard deviation of the distribution of sample means? Please round your answer to the nearest tenth. Note that the correct answer will be evaluated based on the full-precision resul Question 5 The mean is 47.1 and the standard deviation is 9.5 for a population. Using the Central Limit Theorem, what is the standard deviation of the dis Please round your answer to the nearest tenth. Note that the correct answer will be evaluated based on the full-precision resul Question 6 Suppose your marketing colleague used a known population mean and standar What is the standard error for the new sample size? Please round your answer to the nearest tenth. Note that the correct answer will be evaluated based on the full-precision resul between advertising budget and sales for Product A: 6 7 8 9 120,000 130,000 140,000 140,000 725,000 809,000 832,000 845,000 10 150,000 919,000 ression line? n the full-precision result you would obtain using Excel. between advertising budget and sales for Product A: 6 7 8 9 50,000 60,000 70,000 80,000 308,000 376,000 418,000 486,000 10 80,000 499,000 ng budget of $57,000? n the full-precision result you would obtain using Excel. between advertising budget and sales for Product A: 6 7 8 9 70,000 80,000 80,000 90,000 440,000 499,000 494,000 536,000 10 100,000 604,000 the relationship between advertising and sales? n the full-precision result you would obtain using Excel erships were as follows: 6 7 8 9 10 15 26 45 33 38 n the full-precision result you would obtain using Excel. erships were as follows: 6 34 7 44 8 29 9 15 n the full-precision result you would obtain using Excel. sting of five car dealerships, were as follows: n the full-precision result you would obtain using Excel. sting of five car dealerships, were as follows: sample means? n the full-precision result you would obtain using Excel. 10 30 rd deviation of the distribution of sample means for samples of size 60? ation mean and standard deviation to compute the standard error as 56.4 for samples of a particula r samples of a particular size. You don't know the particular sample size but your colleague told you your colleague told you that the sample size is greater than 70. Your boss asks what the standard asks what the standard error would be if you triple the sample size.
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