Is the price of a smartphone affected by its display size, camera resolution, or internal storage capacity? Perform a regression analysis on the SmartphoneDCS dataset using MegaStat and answer the following questions. The level of significance is .05. When you copy and paste output from MegaStat to answer a question, remember to choose to "Keep Formatting" to paste the text.a. Do the data conform to Evans' Rule? What about Doane's Rule? Show the calculations to explain the reason for your answers.b. What is the critical value for the F test?c. Perform the regression and state the regression equation.d. Copy and paste the ANOVA table from your analysis. Is the overall fit of the model significant or not? Use your answer to part (b) to explain your decision.e. What is the coefficient of determination and the adjusted coefficient of determination for your analysis? What do these two coefficients tell you about the variation of price in your model? SmartphonePriceAppleSamsung(Megapixels)(GB)Apple iPhone 12 Pro MaxApple iPhone 12 ProApple iPhone XRApple iPhone 12 mini110011212810001121285001126470011264Apple iPhone 12Apple iPhone 118001126460011264Apple iPhone SE 202040011264Samsung Galaxy Note20 Ultra 5GSamsung Galaxy S21 Ultra 5GSamsung Galaxy S21+ 5G13001108128120011081281000112128Samsung Galaxy Note20 5G1000112128Samsung Galaxy S20 FE 5GSamsung Galaxy S21 5GSamsung Galaxy A52 5G700112128800112128500164128Samsung Galaxy A71 5GSamsung Galaxy Z Fold2 5GSamsung Galaxy A42 5GSamsung Galaxy A51Samsung Galaxy A50Samsung Galaxy Z Flip 5GSamsung Galaxy Z Flip5001641281800112256400148128400148128300125128950112.22561200112.2256OnePlus 8 Pro70048128OnePlus 850048128OnePlus Nord N10 5G30064128OnePlus 9 Pro107048128OnePlus 8T60048128Sony Xperia 5 II90012128LG V60 ThinQ 5G65064128Google Pixel 5LG Velvet 5G70012.212860048128Sony Xperia 1 IIGoogle Pixel 4a10001212835012.2128Motorola One 5G Ace38048128OnePlus Nord N1002101364LG G8X ThinQ with Dual Screen50012128Motorola EdgeMotorola Moto g power (2021)Motorola Moto G PowerMotorola Moto g stylus (2021)700642562304832250166428048128Motorola Moto G StylusSony Xperia 10 ||LG Wing 5GMotorola Moto G Play2504812840012128600642561601332TCL 10L2504864Motorola Razr130016128O Oo o o o

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Is the price of a smartphone affected by its display size, camera resolution, or internal storage capacity? Perform a regression analysis on the SmartphoneDCS dataset using MegaStat and answer the following questions. The level of significance is .05. When you copy and paste output from MegaStat to answer a question, remember to choose to "Keep Formatting" to paste the text.

a. Do the data conform to Evans' Rule? What about Doane's Rule? Show the calculations to explain the reason for your answers.
b. What is the critical value for the F test?
c. Perform the regression and state the regression equation.
d. Copy and paste the ANOVA table from your analysis. Is the overall fit of the model significant or not? Use your answer to part (b) to explain your decision.
e. What is the coefficient of determination and the adjusted coefficient of determination for your analysis? What do these two coefficients tell you about the variation of price in your model?