udy the relationship between brand, camera resolution, and internal storage capacity on the price of smartphones. Use α = .05 to perform a regression analysis of the Smartphones01CS 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. C

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

Let's study the relationship between brand, camera resolution, and internal storage capacity on the price of smartphones. Use α = .05 to perform a regression analysis of the Smartphones01CS 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?

Total
Storage
Camera
Provided
Smartphone
Price
Apple
Samsung
(Megapixels)
(GB)
Apple iPhone 12 Pro Max
1100
1
12
128
Apple iPhone 12 Pro
1000
12
128
Apple iPhone XR
500
12
64
Apple iPhone 12 mini
700
12
64
Apple iPhone 12
800
12
64
Apple iPhone 11
Apple iPhone SE 2020
600
12
64
400
12
64
Samsung Galaxy Note20 Ultra 5G
1300
108
128
Samsung Galaxy S21 Ultra 5G
Samsung Galaxy S21+ 5G
1200
1
108
128
1000
1
12
128
Samsung Galaxy Note20 5G
1000
1
12
128
Samsung Galaxy S20 FE 5G
Samsung Galaxy S21 5G
Samsung Galaxy A52 5G
700
1
12
128
800
1
12
128
500
64
128
Samsung Galaxy A71 5G
500
1
64
128
Samsung Galaxy Z Fold2 5G
Samsung Galaxy A42 5G
1800
1
12
256
400
1
48
128
Samsung Galaxy A51
400
1
48
128
Samsung Galaxy A50
300
25
128
Samsung Galaxy Z Flip 5G
Samsung Galaxy Z Flip
OnePlus 8 Pro
950
1
12.2
256
1200
12.2
256
700
48
128
OnePlus 8
500
48
128
OnePlus Nord N10 5G
300
64
128
OnePlus 9 Pro
1070
48
128
OnePlus 8T
600
48
128
Sony Xperia 5 II
900
12
128
LG V60 ThinQ 5G
650
64
128
Google Pixel 5
700
12.2
128
LG Velvet 5G
600
48
128
Sony Xperia 1 ||
1000
12
128
Google Pixel 4a
350
12.2
128
Motorola One 5G Ace
380
48
128
OnePlus Nord N100
LG G8X ThinQ with Dual Screen
210
13
64
500
12
128
Motorola Edge
700
64
256
Motorola Moto g power (2021)
230
48
32
Motorola Moto G Power
250
16
64
Motorola Moto g stylus (2021)
280
48
128
Motorola Moto G Stylus
250
48
128
Sony Xperia 10||
LG Wing 5G
400
12
128
600
64
256
Motorola Moto G Play
160
13
32
TCL 10L
250
48
64
Motorola Razr
1300
16
128
O o o o o o
Transcribed Image Text:Total Storage Camera Provided Smartphone Price Apple Samsung (Megapixels) (GB) Apple iPhone 12 Pro Max 1100 1 12 128 Apple iPhone 12 Pro 1000 12 128 Apple iPhone XR 500 12 64 Apple iPhone 12 mini 700 12 64 Apple iPhone 12 800 12 64 Apple iPhone 11 Apple iPhone SE 2020 600 12 64 400 12 64 Samsung Galaxy Note20 Ultra 5G 1300 108 128 Samsung Galaxy S21 Ultra 5G Samsung Galaxy S21+ 5G 1200 1 108 128 1000 1 12 128 Samsung Galaxy Note20 5G 1000 1 12 128 Samsung Galaxy S20 FE 5G Samsung Galaxy S21 5G Samsung Galaxy A52 5G 700 1 12 128 800 1 12 128 500 64 128 Samsung Galaxy A71 5G 500 1 64 128 Samsung Galaxy Z Fold2 5G Samsung Galaxy A42 5G 1800 1 12 256 400 1 48 128 Samsung Galaxy A51 400 1 48 128 Samsung Galaxy A50 300 25 128 Samsung Galaxy Z Flip 5G Samsung Galaxy Z Flip OnePlus 8 Pro 950 1 12.2 256 1200 12.2 256 700 48 128 OnePlus 8 500 48 128 OnePlus Nord N10 5G 300 64 128 OnePlus 9 Pro 1070 48 128 OnePlus 8T 600 48 128 Sony Xperia 5 II 900 12 128 LG V60 ThinQ 5G 650 64 128 Google Pixel 5 700 12.2 128 LG Velvet 5G 600 48 128 Sony Xperia 1 || 1000 12 128 Google Pixel 4a 350 12.2 128 Motorola One 5G Ace 380 48 128 OnePlus Nord N100 LG G8X ThinQ with Dual Screen 210 13 64 500 12 128 Motorola Edge 700 64 256 Motorola Moto g power (2021) 230 48 32 Motorola Moto G Power 250 16 64 Motorola Moto g stylus (2021) 280 48 128 Motorola Moto G Stylus 250 48 128 Sony Xperia 10|| LG Wing 5G 400 12 128 600 64 256 Motorola Moto G Play 160 13 32 TCL 10L 250 48 64 Motorola Razr 1300 16 128 O o o o o o
Expert Solution
Step 1

Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a time so we are answering the first three as you have not mentioned which of these you are looking for. Please re-submit the question separately for the remaining sub-parts.

Given:

The data given is as follows

Serial no Price Apple Samsung Megapixels GB
1 1100 1 0 12 128
2 1000 1 0 12 128
3 500 1 0 12 64
4 700 1 0 12 64
5 800 1 0 12 64
6 600 1 0 12 64
7 400 1 0 12 64
8 1300 0 1 108 128
9 1200 0 1 108 128
10 1000 0 1 12 128
11 1000 0 1 12 128
12 700 0 1 12 128
13 800 0 1 12 128
14 500 0 1 64 128
15 500 0 1 64 128
16 1800 0 1 12 256
17 400 0 1 48 128
18 400 0 1 48 128
19 300 0 1 25 128
20 950 0 1 12.2 128
21 1200 0 1 12.2 128
22 700 0 0 48 128
23 500 0 0 48 128
24 300 0 0 64 128
25 1070 0 0 48 128
26 600 0 0 48 128
27 900 0 0 12 128
28 650 0 0 64 128
29 700 0 0 12.2 128
30 600 0 0 48 128
31 1000 0 0 12 128
32 350 0 0 12.2 128
33 380 0 0 48 128
34 210 0 0 13 64
35 500 0 0 12 128
36 700 0 0 64 256
37 230 0 0 48 32
38 250 0 0 16 64
39 280 0 0 48 128
40 250 0 0 48 128
41 400 0 0 12 128
42 600 0 0 64 256
43 160 0 0 13 32
44 250 0 0 48 64
45 1300 0 0 16 128
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman