Page 1 of 67
BUAL 2650 GUPTA EXAM 2 & 1 ALL 400
QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
BUAL 2650 GUPTA EXAM 2
QUESTION: 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 would be stated as
a. PInternet − Pstore > 0
b. PInternet − Pstore < 0
c. PInternet − Pstore ≥ .10
d. PInternet − Pstore ≤ .10
e. PInternet − Pstore > .10 - ANSWER-e. PInternet − Pstore > .10
1
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QUESTION: 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
________.
a. 19
b. 18
c. 9
d. 8
e. 10 - ANSWER-c. 9
QUESTION: The ________ measures the strength of the linear relationship between the
dependent variable and the independent variable.
a. correlation coefficient
b. distance value
c. Y-intercept
d. residual - ANSWER-a. correlation coefficient
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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
a. always
b. sometimes
c. never - ANSWER-a. always
QUESTION: 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
a. PInternet − Pstore > .10
b. PInternet − Pstore < .10
c. PInternet − Pstore ≥ .10
d. PInternet − Pstore ≤ .10
e. PInternet − Pstore = .10 - ANSWER-d. PInternet − Pstore ≤ .10
3
, Page 4 of 67
QUESTION: The correlation coefficient may assume any value between
a. 0 and 1
b. −∞ and ∞
c. 0 and 8
d. −1 and 1
e. −1 and 0 - ANSWER-d. −1 and 1
QUESTION: The following results were obtained as part of a simple regression analysis.
r2 = .9162F
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
4
BUAL 2650 GUPTA EXAM 2 & 1 ALL 400
QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
BUAL 2650 GUPTA EXAM 2
QUESTION: 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 would be stated as
a. PInternet − Pstore > 0
b. PInternet − Pstore < 0
c. PInternet − Pstore ≥ .10
d. PInternet − Pstore ≤ .10
e. PInternet − Pstore > .10 - ANSWER-e. PInternet − Pstore > .10
1
, Page 2 of 67
QUESTION: 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
________.
a. 19
b. 18
c. 9
d. 8
e. 10 - ANSWER-c. 9
QUESTION: The ________ measures the strength of the linear relationship between the
dependent variable and the independent variable.
a. correlation coefficient
b. distance value
c. Y-intercept
d. residual - ANSWER-a. correlation coefficient
2
, Page 3 of 67
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
a. always
b. sometimes
c. never - ANSWER-a. always
QUESTION: 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
a. PInternet − Pstore > .10
b. PInternet − Pstore < .10
c. PInternet − Pstore ≥ .10
d. PInternet − Pstore ≤ .10
e. PInternet − Pstore = .10 - ANSWER-d. PInternet − Pstore ≤ .10
3
, Page 4 of 67
QUESTION: The correlation coefficient may assume any value between
a. 0 and 1
b. −∞ and ∞
c. 0 and 8
d. −1 and 1
e. −1 and 0 - ANSWER-d. −1 and 1
QUESTION: The following results were obtained as part of a simple regression analysis.
r2 = .9162F
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
4
