Textbook cost is one expense that university students often complain about. Does the cost of a book (in dollars) increase when the size of the book (in pages) does? The assumptions were checked, and are met. Use the Minitab output and the graphs provided on Moodle, to answer the following questions. Do not do any calculations unless the question states "calculate". Which of the following is the correct choice for the hypotheses? Select one: O a. Ho: B1 = 0 Ha: B1 = 0 O b. Ho: B1 = 0 Ha: B1 > 0 O c. Ho: Bo = 0 Ha: Bo > 0 O d. Ho: b1 = 0 Ha: b1 # 0Define the parameter in context. Note that this is not the same as writing Ho/Ha in words. We want you to define the parameter, the symbol that is in both the Ho and the Ha. 1 A v B I IE IE Identify the test statistic and p-value from the Minitab output. t= P-value =Briey assess the strength of the evidence. Which of the following best explains the strength of the P-valoe? Select one: 0 i. very strong evidence for He 0 ii. strong evidence for He 0 iii. moderate evidence for He 0 iv. weak evidence for He 0 it. no evidence for He State your conclusion in context 1 Av'B'I Eta $93 What percentage of the variation in Cost of the Book can be explained by variation in Size of the Book? Answer: % Interpret the 95% confidence interval from MINITAB in the context of the problem. 1 A v B I CSIdentify the correct interpretation of the prediction interval on the output. O a. Since the assumptions are met, we predict with 95% confidence that for all university textbooks that are 600 pages long, their average cost will be between $22.75 and $147.31. O b. Since the assumptions are met, we predict with 95% confidence that if we randomly select one university textbook that is 600 pages long, its predicted cost will increase by between $22.75 and $147.31. O c. Since the assumptions are met, we predict with 95% confidence that if we randomly selected one university textbook that is 600 pages long, its predicted cost will be between $22.75 and $147.31. O d. Since the assumptions are met, we predict with 95% confidence that if we randomly selected one university textbook, its predicted cost will be between $22.75 and $147.31.Scatterplot of Price vs Pages 180 160 140 120 100 Price 80 60 40 20 200 400 600 800 1000 1200 Pages Fitted Line Plot Price = - 3.42 + 0.1473 Pages 180 S 29.7605 R.Sq 67.7% 160 R-Sq(adj) 665% 140 120 100 Price 80 60 40 20 0 200 400 600 800 1000 1200 PagesRegression Analysis: Price versus Pages Regression Equation Price = -3.5 +0.1475 Pages Coefficients Term Coef SE Coef T-Value P-Value Constant -3.5 10.5 -0.33 0.744 Pages 0.1475 0.0193 7.65 0.000 Model Summary S R-sq R-sq(adj) 29.7986 67.64% 66.49% Analysis of Variance Source DF Adj SS Adj MS F-Value P-Value Regression 1 51975 51974.8 58.53 0.000 Error 28 24863 888.0 Total 29 76838 Fits and Diagnostics for All Observations Obs Price Fit Resid Std Resid 95.00 85.03 9.97 0.34 2 19.95 9.97 9.98 0.35 3 51.50 26.04 25.46 0.88 4 128.50 55.53 72.97 2.49 R 5 96.00 73.38 22.62 0.77 6 48.50 43.00 5.50 0.19 7 147.75 114.52 33.23 1.16 8 92.00 114.52 -22.52 -0.79 9 19.50 85.03 -65.53 -2.25 R 10 85.50 68.51 16.99 0.58 11 16.95 18.67 -1.72 -0.06 12 9.95 17.19 -7.24 .0.25 13 5.95 25.16 -19.21 .0.67 14 58.75 59.22 -0.47 -0.02 15 6.50 4.07 2.43 0.09 16 70.75 133.69 -62.94 -2.26 R 17 4.25 4.95 -0.70 -0.02 18 115.25 129.27 -14.02 .0.50 19 158.00 106.56 51.44 1.79 20 6.50 11.88 -5.38 .0.19 21 130.50 99.18 31.32 1.08 22 7.00 39.90 -32.90 -1.13 23 41.25 74.12 -32.87 -1.12 24 169.75 152.86 16.89 0.63 25 71.25 70.58 0.67 0.02 26 82.25 83.55 .1.30 -0.04 27 12.98 46.10 -33.12 -1.13 28 127.00 116.88 10.12 0.36 29 41.50 49.05 -7.55 -0.26 30 31.00 33.12 -2.12 -0.07Prediction for Price Regression Equation Prlce = -15+0.1475an Settings 9mm \"It! 600 Prediction Fit 5: m 95% a 959; n 05.0279 6.03460 (72.6666. 97.3892) (22.7492, 147.307) Residual Plots for Price Normal Probability Plot Versus Fits 99 80 90 40 50 Residual Percent 10 -40 -80 -80 -40 0 40 80 40 80 120 160 Residual Fitted Value Histogram Versus Order BO 12 40 Residual Frequency 6 -40 0 -80 -60 -40 -20 0 20 40 60 80 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Residual Observation Order