Prof. Gersch wishes to find a relationship between how many hours students study and how they...
Prof. Gersch wishes to find a relationship between how many
hours students study and how they do on a departmental test. He
takes a random sample of 50 students, asks how many hours they
studied for their test and how they did on the test, enters the
data into a computer for analysis and finds the relation is given
by the following regression equation:
GRADE = 45.2 + 10.1*HOURS
Based on the regression model, what grade would a student get if
they study 5 hours?
(Give your answer to one decimal place; eg, 45.2)
Homework Answers
From the given regression equation, For hours = 5:
Grades = 45.2 + 10.1 * 5
Grades = 95.7
Add Answer to:
Prof. Gersch wishes to find a relationship between how many
hours students study and how they...
Prof. Gersch wishes to find a relationship between how many hours students study and how they...
Prof. Gersch wishes to find a relationship between how many hours students study and how they do on a departmental test. He takes a random sample of 50 students, asks how many hours they studied for their test and how they did on the test, enters the data into a computer for analysis and finds the relation is given by the following regression equation: GRADE = 45.2 + 10.1*HOURS Prof. Gersch, in this analysis, sees that the SSE is...
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An educational psychologist would like to know the relationship
between the number of hours per week that students study for a
course and their performance in the test.
a.Compute the Pearson correlation of the data below
b.Determine the significance of the correlation at α .05,
two-tailed by referring to Table B.6in the Appendix of your
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An instructor asked five students how many hours they had studied for an exam, with the accompanying results. Complete parts (a) through (d) below. Click the icon to view the paired scores for hours studied and test grade. (a) Make a scatter diagram of the scores. Choose the correct answer below. OB Oc. OD OA So 100 As Q a 100 12- Test Gede ther 0 You 0 100 Test Grade 0 100 Test Grade Hours de Hours Studied WW...
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An educational psychologist would like to know the relationship
between the number of hours per week that students study for a
course and their performance in the test.
a.Compute the Pearson correlation of the data below
b.Determine the significance of the correlation at α .05,
two-tailed by referring to Table B.6in the Appendix of your
textbook. State whether the correlation is significant.
No. of Hours of Study Test Score
What is the relationship between the amount of time statistics students study per week and their final exam scores? The results of the survey are shown below. Time Score 3 10 15 512 015 58 75 89 89 77 79 54 96 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: Ho: ? - 0 H: 70 (Round to four The p-value is: decimal places) c. Use a...
What is the relationship between the amount of time statistics students study per week and their final exam scores? The results of the survey are shown below. Time Score 3 67 13 95 6 15 77 89 13 100 3 66 7 63 11 79 1 59 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: Ho: ? D = 0 H: ? *0 The p-value is: (Round...
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