Answered: Twenty students were randomly asked…

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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Question

Twenty students were randomly asked about their grades in English and Social Studies. (check attached photo)

1. What is the response variable in the study?

A. grade in English

B. grade in Social Studies

C. either A or B

D. neither A or B

2. What is the explanatory variable in the study?

A. grade in English

B. grade in Social Studies

C. either A or B

D. neither A or B

3. If the predictor variable is the grade in English, what is the value of the slope estimate? (Write in the nearest hundredths)

4. Interpret the value of the slope if the predictor variable is the grade in English.

5. If the predictor variable is the grade in English, what is the value of the y-intercept?

6. Interpret the value of the y-intercept if the predictor variable is the grade in English.

7. Write the regression line equation that predicts a student's grade in English?

Transcribed Image Text:respondent # 1 2 3 4 6 7 8 9. 10 11 12 13 14 15 16 17 18 19 20 grade in English 1.50 1.00 2.00 3.00 2.75 2.00 1.75 1.50 1.25 2.50 1.25 3.00 2.75 1.75 1.25 1.50 1.75 1.50 2.00 2.25 grade in Social Studies 1.25 1.25 2.25 2.75 2.50o 1.75 1.50 1.25 1.00 2.00 1.00 2.75 2.25 1.50 1.00 1.25 1.25 1.25 1.75 2.50

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