Let's study the relationship between brand, display size, and internal storage capacity on the price of smartphones. Use = .05 to perform a regression analysis of the Smartphones01DS.xlsx dataset, and then answer the following questions. When you copy and paste output from MegaStat to answer a question, remember to choose to "Keep Formatting" to paste the text.

a. Did you find any evidence of multicollinearity and variance inflation among the predictors. Explain your answer using a VIF analysis.

b. Copy and paste the normal probability plot for your analysis. Is there any evidence that the errors are not normally distributed? Explain.

c. Copy and paste the Residuals vs. Predicted Y-values. Does the pattern support the null hypothesis of constant variance for the errors? Explain.

d. Study the residuals analysis. Which observations, if any, have unusual residuals?

e. Study the residuals analysis. Calculate the leverage statistic. Which observations, if any, are high leverage observations?

Samsung Apple 1 Price 1100 1000 500 700 800 1 Display Total Diagonal Storage Size Provided (Inches) (GB) 6.7 128 6.1 128 6.1 64 5.4 64 6.1 64 1 1 0 1 0 1 0 64 600 400 6.1 4.7 1 0 64 1300 0 1 128 6.9 6.8 0 1 0 1 6.7 6.7 128 128 128 0 1 0 1 6.5 1200 1000 1000 700 800 500 500 1800 400 128 128 0 1 0 1 128 128 0 1 Smartphone 2 Apple iPhone 12 Pro Max 3 Apple iPhone 12 Pro 4 Apple iPhone XR 5 Apple iPhone 12 mini 6 Apple iPhone 12 7 Apple iPhone 11 8 Apple iPhone SE 2020 9 Samsung Galaxy Note20 Ultra 5G 10 Samsung Galaxy S21 Ultra 5G 11 Samsung Galaxy S21+ 5G 12 Samsung Galaxy Note20 56 13 Samsung Galaxy S20 FE 5G 14 Samsung Galaxy S21 56 15 Samsung Galaxy A52 5G 16 Samsung Galaxy A71 5G 17 Samsung Galaxy Z Fold2 5G 18 Samsung Galaxy A42 5G 19 Samsung Galaxy A51 20 Samsung Galaxy A50 21 Samsung Galaxy Z Flip 5G 22 Samsung Galaxy Z Flip 23 OnePlus 8 Pro 24 OnePlus 8 25 OnePlus Nord N10 56 26 OnePlus 9 Pro 27 OnePlus 8T 28 Sony Xperia 5 11 29 LG V60 ThinQ 5G 30 Google Pixel 5 31 LG Velvet 5G 32 Sony Xperia 1 || 33 Google Pixel 4a 1 6.2 6.5 6.7 7.6 6.6 6.4 0 1 256 0 1 128 400 0 1 300 0 1 6.4 128 128 256 256 0 1 950 1200 6.7 6.7 0 1 0 6.8 128 700 500 0 128 128 0 0 300 1070 600 900 650 700 600 1000 350 0 6.6 6.5 6.7 6.6 6.1 6.8 128 128 128 128 0 o 0 6.0 128 128 6.8 6.5 5.8 128 128 380 0 6.7 128 210 0 O O C 6.5 64 500 0 6.4 128 700 0 0 6.7 256 230 0 0 6.6 32 250 0 0 6.4 64 34 Motorola One 5G Ace 35 OnePlus Nord N100 36 LG G8X ThinQ with Dual Screen 37 Motorola Edge 38 Motorola Moto g power (2021) 39 Motorola Moto G Power 40 Motorola Moto g stylus (2021) 41 Motorola Moto G Stylus 42 Sony Xperia 10 II 43 LG Wing 5G 44 Motorola Moto G Play 45 TCL 10L 46 Motorola Razr 280 0 0 6.8 128 250 0 0 6.4 128 400 0 0 6.0 128 600 0 0 6.8 256 32 160 0 O 6.5 250 0 0 6.5 64 1300 0 O 6.2 128 Samsung Apple 1 Price 1100 1000 500 700 800 1 Display Total Diagonal Storage Size Provided (Inches) (GB) 6.7 128 6.1 128 6.1 64 5.4 64 6.1 64 1 1 0 1 0 1 0 64 600 400 6.1 4.7 1 0 64 1300 0 1 128 6.9 6.8 0 1 0 1 6.7 6.7 128 128 128 0 1 0 1 6.5 1200 1000 1000 700 800 500 500 1800 400 128 128 0 1 0 1 128 128 0 1 Smartphone 2 Apple iPhone 12 Pro Max 3 Apple iPhone 12 Pro 4 Apple iPhone XR 5 Apple iPhone 12 mini 6 Apple iPhone 12 7 Apple iPhone 11 8 Apple iPhone SE 2020 9 Samsung Galaxy Note20 Ultra 5G 10 Samsung Galaxy S21 Ultra 5G 11 Samsung Galaxy S21+ 5G 12 Samsung Galaxy Note20 56 13 Samsung Galaxy S20 FE 5G 14 Samsung Galaxy S21 56 15 Samsung Galaxy A52 5G 16 Samsung Galaxy A71 5G 17 Samsung Galaxy Z Fold2 5G 18 Samsung Galaxy A42 5G 19 Samsung Galaxy A51 20 Samsung Galaxy A50 21 Samsung Galaxy Z Flip 5G 22 Samsung Galaxy Z Flip 23 OnePlus 8 Pro 24 OnePlus 8 25 OnePlus Nord N10 56 26 OnePlus 9 Pro 27 OnePlus 8T 28 Sony Xperia 5 11 29 LG V60 ThinQ 5G 30 Google Pixel 5 31 LG Velvet 5G 32 Sony Xperia 1 || 33 Google Pixel 4a 1 6.2 6.5 6.7 7.6 6.6 6.4 0 1 256 0 1 128 400 0 1 300 0 1 6.4 128 128 256 256 0 1 950 1200 6.7 6.7 0 1 0 6.8 128 700 500 0 128 128 0 0 300 1070 600 900 650 700 600 1000 350 0 6.6 6.5 6.7 6.6 6.1 6.8 128 128 128 128 0 o 0 6.0 128 128 6.8 6.5 5.8 128 128 380 0 6.7 128 210 0 O O C 6.5 64 500 0 6.4 128 700 0 0 6.7 256 230 0 0 6.6 32 250 0 0 6.4 64 34 Motorola One 5G Ace 35 OnePlus Nord N100 36 LG G8X ThinQ with Dual Screen 37 Motorola Edge 38 Motorola Moto g power (2021) 39 Motorola Moto G Power 40 Motorola Moto g stylus (2021) 41 Motorola Moto G Stylus 42 Sony Xperia 10 II 43 LG Wing 5G 44 Motorola Moto G Play 45 TCL 10L 46 Motorola Razr 280 0 0 6.8 128 250 0 0 6.4 128 400 0 0 6.0 128 600 0 0 6.8 256 32 160 0 O 6.5 250 0 0 6.5 64 1300 0 O 6.2 128