Homework Answers
Answer:
Given that:
An instructor wishes to determine if there is a relationship between the number of absences from his class and a students final grade in the course. What is the explanatory variable
Absences .
Here we are looking for the independent variable. In this case, the thing that he is changing is the number of absences, and observing what effect that has on the student's final grade - the dependent variable.
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1. The following data represents the number of days absent and the final grade for a...
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status?
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significant?...
please who can answer this question
10. A statistics instructor is interested in comparing the final grades for his introductory course with the final grades for all of the introductory statistics courses at Brandon University in the past ten years. The final grades for his class form a normal distribution with a x= 75 and as= 10. The final grades for all of the introductory statistics courses also form a normal distribution, but with a u = 60 and a...
The following data represents the number of days absent and the final grade for a sample of college students in a general education course at a large state university. 0 1 2 3 4 5 6 7 8 9 No. of absences Final Grade 89.2 86.4 83.5 81.1 78.2 73.9 64.3 71.8 65.5 66.2 a) Which variable is the explanatory variable? b) Draw a scatter plot and describe your scatter plot (Direction, Strength, Form). c) Compute the correlation coefficient d)...
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A researcher wishes to determine whether ethnicity and marital
status are factors in the performance of university students during
their senior year. The dependent variable is grade-point average
(GPA) on a 4.0 scale.
Describe the kind of a factorial ANOVAthis is (2x2,
etc).
How many Fvalues will be calculated in the course of
completing this problem?
Are there significant differences related to ethnicity?
Are there significant differences related to martial
status?
Is the interaction of marital status and ethnicity
significant?...
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