BUAL 2650 Gupta Final Exam Questions
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In testing for the equality of means from two independent
populations, if the hypothesis of equal population means is
rejected at α = .01, it will ________ be rejected at α = .05
always
A new company is in the process of evaluating its customer
service. The company offers two types of sales: (1) Internet
sales and (2) store sales. The marketing research manager
believes that the Internet sales are more than 10 percent
higher than store sales. The null hypothesis would be
PInternet − Pstore ≤ .10.
A new company is in the process of evaluating its customer
service. The company offers two types of sales: (1) Internet
sales and (2) store sales. The marketing research manager
believes that the Internet sales are more than 10 percent
higher than store sales. The alternative hypothesis for this
problem would be stated as
PInternet − Pstore > .10.
If we are testing the hypothesis about the mean of a
population of paired differences with samples of n1 = 10, n2
= 10, the degrees of freedom for the t statistic is ________
9
The ________ measures the strength of the linear
relationship between the dependent variable and the
independent variable.
correlation coefficient
The correlation coefficient may assume any value between
-1 and 1
, The following results were obtained as part of a simple
regression analysis.
r2 = .9162
F statistic from the F table = 3.59
Calculated value of F from the ANOVA table = 81.87
α = .05
p-value = .000
The null hypothesis of no linear relationship between the
dependent variable and the independent variable
is rejected
The coefficient of determination measures the ________
explained by the simple linear regressionmodel
proportion of variation
The ________ of the simple linear regression model is the
value of y when the mean value of x is zero.
y-intercept
In multiple regression analysis, the explained sum of squares
divided by the total sum of squaresyields the __________
R^2
Which one of the following is not an assumption about the
residuals in a regression model?
variance of zero
The ________ regression method is used when the response
variable is a qualitative or acategorical variable.
Logistic
Which of the following methods do we use to best fit the data
in logistic regression?
Maximum likelihood
A soccer player takes a shot on goal 15 times and scores a
goal 3 of those attempts. What are the odds of the soccer
player scoring a goal?
3/12
Which of the following tests can be used to assess whether
the logistic regression model is a good fit?
and Correct Detailed Answers (Verified
Answers) Already Graded A+ Newest
Version
In testing for the equality of means from two independent
populations, if the hypothesis of equal population means is
rejected at α = .01, it will ________ be rejected at α = .05
always
A new company is in the process of evaluating its customer
service. The company offers two types of sales: (1) Internet
sales and (2) store sales. The marketing research manager
believes that the Internet sales are more than 10 percent
higher than store sales. The null hypothesis would be
PInternet − Pstore ≤ .10.
A new company is in the process of evaluating its customer
service. The company offers two types of sales: (1) Internet
sales and (2) store sales. The marketing research manager
believes that the Internet sales are more than 10 percent
higher than store sales. The alternative hypothesis for this
problem would be stated as
PInternet − Pstore > .10.
If we are testing the hypothesis about the mean of a
population of paired differences with samples of n1 = 10, n2
= 10, the degrees of freedom for the t statistic is ________
9
The ________ measures the strength of the linear
relationship between the dependent variable and the
independent variable.
correlation coefficient
The correlation coefficient may assume any value between
-1 and 1
, The following results were obtained as part of a simple
regression analysis.
r2 = .9162
F statistic from the F table = 3.59
Calculated value of F from the ANOVA table = 81.87
α = .05
p-value = .000
The null hypothesis of no linear relationship between the
dependent variable and the independent variable
is rejected
The coefficient of determination measures the ________
explained by the simple linear regressionmodel
proportion of variation
The ________ of the simple linear regression model is the
value of y when the mean value of x is zero.
y-intercept
In multiple regression analysis, the explained sum of squares
divided by the total sum of squaresyields the __________
R^2
Which one of the following is not an assumption about the
residuals in a regression model?
variance of zero
The ________ regression method is used when the response
variable is a qualitative or acategorical variable.
Logistic
Which of the following methods do we use to best fit the data
in logistic regression?
Maximum likelihood
A soccer player takes a shot on goal 15 times and scores a
goal 3 of those attempts. What are the odds of the soccer
player scoring a goal?
3/12
Which of the following tests can be used to assess whether
the logistic regression model is a good fit?
