A prominent university conducted a survey on the effect of part-time work on student grade point average (GPA). Let x be the hours worked per week and y the GPA for the year. A summary of the results is below. What can the university conclude with α = 0.05? n=31 Σ y= 56 , Σ x=515 Σ y^2= 128 , Σ x^2= 11022 Σ yx= 827 , Σ (y- ŷ)² = 23 A) Compute the quantities below. b̂0= & b̂= What GPA is predicted when a students works 18 hours a week? B) Obtain/compute the appropriate values for H1: β > 0. critical value = test statistic= C) Compute the corresponding effect size(s) and indicate magnitude(s).If not appropriate, input and/or select "na" below.
A prominent university conducted a survey on the effect of part-time work on student grade point average (GPA). Let x be the hours worked per week and y the GPA for the year. A summary of the results is below. What can the university conclude with α = 0.05? n=31 Σ y= 56 , Σ x=515 Σ y^2= 128 , Σ x^2= 11022 Σ yx= 827 , Σ (y- ŷ)² = 23 A) Compute the quantities below. b̂0= & b̂= What GPA is predicted when a students works 18 hours a week? B) Obtain/compute the appropriate values for H1: β > 0. critical value = test statistic= C) Compute the corresponding effect size(s) and indicate magnitude(s).If not appropriate, input and/or select "na" below.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 92E
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A prominent university conducted a survey on the effect of part-time work on student grade point average (GPA). Let x be the hours worked per week and y the GPA for the year. A summary of the results is below. What can the university conclude with α = 0.05?
n=31
Σ y= 56 , Σ x=515
Σ y^2= 128 , Σ x^2= 11022
Σ yx= 827 , Σ (y- ŷ)² = 23
A) Compute the quantities below.
b̂0= & b̂=
What GPA is predicted when a students works 18 hours a week?
B) Obtain/compute the appropriate values for H1: β > 0.
critical value =
test statistic=
C) Compute the corresponding effect size(s) and indicate magnitude(s).
If not appropriate, input and/or select "na" below.
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