You have a data set with three predictors: X1 = GPA, X2 = IQ,
and X3...
You have a data set with three predictors: X1 = GPA, X2 = IQ,
and X3 = Gender (1 for female, 0 for male). The response is
starting salary after graduation (in $ thousands). We use least
squares to fit the model, and we get b0 = 50, b1 = 20, b2 = 0.07,
and b3 = 35.
a. Predict the salary of a woman with an IQ of 110 and a GPA of
4.0 (for calculation please use Excel.)...
Using the data in SLEEP75.RAW, we obtain the estimated
equation
Sleep =3,840.83 -.163totwrk - 11.71educ -...
Using the data in SLEEP75.RAW, we obtain the estimated
equation
Sleep =3,840.83 -.163totwrk - 11.71educ - 8.70 age -.128 age2 +
87.75
male
(235.11) (.018) (5.86) (11.21) (.134) (34.33)
N=706, R2=.123,
The variable sleep
is total minutes per week spent
sleeping at night, totwrk is total weekly minutes spent working,
educ and age are measured in years,
and male is a gender dummy.
All other factors being equal, is there evidence that men sleep
more than women? How strong is
The evidence?
Is there a statistically significant tradeoff between working
and sleeping? What is the...
Below is collected data of the question "how many
kisses have you eaten in the past...
Below is collected data of the question "how many
kisses have you eaten in the past day?"
This is between men and women.
The tables are these:
Male: 2, 4, 3, 1, 3, 3, 5, 3, 0, 0, 2, 0, 3, 1, 1, 4, 2, 3, 5, 4,
3, 1, 2, 3, 2, 0, 1, 3, 2,0 Female: 1, 2, 3, 0,
2, 4, 2, 1, 1, 5, 2, 1, 0, 1, 0, 0
Generate the experimental design using the...
Do male and female students study the
same amount per week? In 2007, 58 sophomore business...
Do male and female students study the
same amount per week? In 2007, 58 sophomore business students were
surveyed at a large university that has more than 1,000 sophomore
business students each year. The file Study Times
contains the gender and the number of hours spent studying in a
typical week for the sampled students.
At the 0.05 level of significance, is there a difference in the
variance of the study time for male students and female
students?
Using the...