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BUAL 2650 GUPTA EXAM 2 | Q&A
LATEST UPDATE | 100% PASS
Question :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
- sometimes
- never
CORRECT 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
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- PInternet − Pstore > .10
- PInternet − Pstore < .10
- PInternet − Pstore ≥ .10
- PInternet − Pstore ≤ .10
- PInternet − Pstore = .10
CORRECT ANSWER :d. PInternet − Pstore ≤ .10
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
- PInternet − Pstore > 0
- PInternet − Pstore < 0
- PInternet − Pstore ≥ .10
- PInternet − Pstore ≤ .10
- PInternet − Pstore > .10
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CORRECT ANSWER :e. PInternet − Pstore > .10
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
________.
- 19
- 18
- 9
- 8
- 10
CORRECT ANSWER :c. 9
Question :The ________ measures the strength of the
linear relationship between the dependent variable and the independent variable.
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- correlation coefficient
- distance value
- Y-intercept
- residual
CORRECT ANSWER :a. correlation coefficient
Question :The correlation coefficient may assume any
value between
- 0 and 1
- −∞ and ∞
- 0 and 8
- −1 and 1
- −1 and 0