SAT, 14.06.2020 11:57 amourjenny
A student used multiple regression analysis to study how family spending (y) is influenced by income
(x1), family size (x2), and additionsto savings(x3). The variables y, x1, and x3 are measured in thousands
of dollars. The following results were obtained.
ANOVA
df SS
Regression 3 45.9634
Residual 11 2.6218
Total
Coefficients Standard Error
Intercept 0.0136
x1
0.7992 0.074
x2
0.2280 0.190
x3
-0.5796 0.920
a. Write out the estimated regression equation for the relationship between the variables. (1
mark)
b. Compute coefficient of determination. What can you say about the strength of this
relationship? (3 marks)
c. Carry out a test to determine whether y is significantly related to the independent variables.
Use a 5% level of significance. (3 marks)
d. Carry out a test to see if x3 and y are significantly related. Use a 5% level of significance. (3
marks)
Answers: 3
SAT, 26.06.2019 18:30
After studying french for 5 yearscin school, i was shocked to discover when i went to france that i couldn't even get a glass of water without a lot of sign language what is the author main point
Answers: 1
SAT, 27.06.2019 12:30
How was the sat? what type of questions for math, writing and reading. did anyone get a near perfect score and if so how long did it take to study. i am very stressed and want to get at least a 1450.
Answers: 1
SAT, 28.06.2019 10:00
In a cooking context,which of the following materials is the best heat conducter?
Answers: 3
A student used multiple regression analysis to study how family spending (y) is influenced by income...
Mathematics, 22.10.2019 00:00
Computers and Technology, 22.10.2019 00:00
Mathematics, 22.10.2019 00:00
Mathematics, 22.10.2019 00:00
History, 22.10.2019 00:00
Mathematics, 22.10.2019 00:00
Computers and Technology, 22.10.2019 00:00
Business, 22.10.2019 00:00