Need regression equation, graph, and predict the value of y for a-d. Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use theregression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below.Hours spent studying, xTest score, y139245352347563671(a) x = 4 hours(c) x = 12 hoursFind the regression equation.y=x+(Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.)(b)x=2.5 hours(d) x = 1.5 hours

As per our guidelines we can solve first three sub part of question and rest can be…

Answered: Find the equation of the regression…

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 student used multiple regression analysis to study how family spending (y) is influenced by income (X1), family size (x2), and additions to savings (x3). The variables y, x1, and x3 are measured in thousands of dollars. The following results were obtained.
The accompanying data are the caloric contents and the sugar contents (in grams) of 11 high-fiber breakfast cereals. Find the equation of the regression line. Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. If the x-value is not meaningful to predict the value of y, explain why not. (a) xequals=150 cal (b) xequals=90 cal (c) xequals=175 cal (d) xequals=208 cal Click the icon to view the table of caloric and sugar contents. The equation of the regression line is ModifyingAbove y with caret equals=nothingxplus+nothing. (Round to two decimal places as needed.) (a) Predict the sugar content for 150 calories, if it is meaningful. Select the correct choice below and, if necessary, fill in the answer box within your choice. A. ModifyingAbove y with caretyequals=nothing g (Round to two decimal places as…
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A teacher wants to form a linear regression equation to predict a student's Score on the final based on the number of hours they spent studying for it. Final scores are in percents. y=2x + 60 R-Squared = 0.65 %3D What does the slope mean in terms of the situation? O For each additional hour a student studies, their grade on the final increases by 2%. O For each additional 2 hours a student student studies, their score on the final increases by 1%. O Every hour a student studies, increases their score on the final. O Always choose C. O The more a student studies, the better they will do on the final.

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