Answered: Based on the data shown below calculate…

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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A manager believes that sales (S) (in $) is a function of the amount of work (H) and commission paid (C). Given data for both variables, the manager ran a regression analysis with the output shown here. Coefficients t Stat P-value Intercept 100 1.80 0.1008 Work Hours -2.20 0.01 Commission 2.66 0.04 Write down the regression model/ equation between the dependent and independent variables, and find the amount of sales for H=2 and c=5 I X2 x2 三三三 of 1.
Find the slope (b1) for the regression equation for the following values. Round to 3 decimal places. Define Variables xi yi 33 180 25 170 50 200 65 186 57 160 27 165
What is the interpretation of the intercept regression coefficient in a regression model? A. The change in X for a unit increase of Y B. The change in Y for a unit increase of X C. The estimated value of the dependent variable when X takes the value 1 D. The estimated value of the dependent variable when X takes the value 0
The following table shows unit sales of iPhones for the given year. t = years since 2010 0 1 2 3 I – units sold in millions 8 16 37 47 Find the equation of the regression line. ________________________ How many units sold does the regression line predict for 2015? ________________________ Explain in practical terms the meaning of the slope.
For the data in the table, find the regression equation. Round the slope and y-intercept two decimals. y 3 12 13 16 10 29 12 32 15 35 18 37 19 39 20 40 Use your equation to predict y when x = 21 y = Submit Question 467 O258098
A set of X and Y scores has SSX = 15, SSY = 24, and SP = 60. The regression equation for these scores will have a slope constant of ______. a. 6 b. 5 c. 3 d. 4
Regression analysis was applied between $ sales (y) and $ advertising (x) across all the branches of a major international corporation. The following regression function was obtained. ý: - 5000 + 7.25x If the advertising budgets of two branches of the corporation differ by $20,000, then what will be the predicted difference in their sales? O $217,500 $222,500 O $145000 O none of the above
Using the data in the image, I need to find the regression using the data analysis in excel. I don’t know which should be the input x or the input y range. Smoking data is to be with each of the remaining four data depicting the types of cancer. Can anyone help?
Q.4. Obtain the equation of the line of regression of y on x from the following data and estimate the blood pressure when the age is 50 years. Age in years x Blood pressure y 50 142 40 120 71 162 35 110 60 140 45 125 52 155 47 140 36 111 40 135 65 150 59 153
For the following data find the regression equation for predicting Y from X. X36SATS 5 4 5 Y 398 3 10 9
Solve the following using excel form
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x	y
3	11.38
4	8.2
5	8.02
6	6.34
7	7.46
8	4.68
9	5.8

Based on the data shown below calculate the regression line ( each value to two decimal places) y=____________ x+_____________ x y 3 11.38 4 8.2 5 8.02 6 6.34 7 7.46 8 4.68 9 5.8

Based on the data shown below calculate the regression line ( each value to two decimal places) y= x+_ x y 3 11.38 4 8.2 5 8.02 6 6.34 7 7.46 8 4.68 9 5.8