BUAL 2650 Gupta Exam 2 PDF | Study Guide, Practice Questions & Exam Review

BUAL 2650 Gupta Exam 2
Study online at https://quizlet.com/_dqxoj7

1. In testing for the equality of means from two indepen- a. always
dent 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

2. A new company is in the process of evaluating its cus- d. PInternet − Pstore d.10
tomer 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 e.10
d. PInternet − Pstore d.10
e. PInternet − Pstore = .10

3. A new company is in the process of evaluating its cus- e. PInternet − Pstore > .10
tomer 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 e.10



, BUAL 2650 Gupta Exam 2
Study online at https://quizlet.com/_dqxoj7

d. PInternet − Pstore d.10
e. PInternet − Pstore > .10

4. If we are testing the hypothesis about the mean of a c. 9
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

5. The ________ measures the strength of the linear re- a. correlation coefficient
lationship between the dependent variable and the
independent variable.

a. correlation coefficient
b. distance value
c. Y-intercept
d. residual

6. The correlation coefficient may assume any value be- d. −1 and 1
tween

a. 0 and 1
b. − and
c. 0 and 8
d. −1 and 1
e. −1 and 0

7. a. is rejected