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25. Regarding Gilbert’s role in revitalizing the Philharmonic, the author feels

A. [A]doubtful.
B. [B]enthusiastic.
C. [C]confident.
D. [D]puzzled.

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Data were collected on annual personal time (in hours) taken by a random sample of 16women and 7 men employed by a medium-sized company. The Human Resources Department believes that women tend to take morepersonal time than men because they tend to be the primary child care givers in thefamily.1. The correct null and alternative hypotheses (assuming women are group 1 and men are group 2) are

A. H 0: µ 1 - µ 2 =0 and H A: µ 1 - µ 2 < 0
B. H 0: µ 1 - µ 2 = 0 and H A: µ 1 - µ 2 ≠ 0
C. H 0: µ 1 - µ 2 = 0 and H A: µ 1 - µ 2 > 0.
D. H 0: µ 1 - µ 2 > 0 and H A: µ 1 - µ 2 < 0

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Which is correct in the above case?

A. women and men are dependent samples.
B. women and men are independent samples.
C. women and men are matched samples.
D. the observations are paired.

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The correct value of the test statistic is

A. 2.02
B. - 2.91
C. 0.458
D. 4.02

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At α =0 .05, which is correct?

A. we reject the null hypothesis.
B. we fail to reject the null hypothesis.
C. we can conclude that women take a higher average number of hours of personal timeper year compared to men.
D. Both A and C.

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25. Regarding Gilbert’s role in revitalizing the Philharmonic, the author feels

A. [A]doubtful. B. [B]enthusiastic. C. [C]confident. D. [D]puzzled.

Which is correct in the above case?

The correct value of the test statistic is

At α =0 .05, which is correct?

A. [A]doubtful.
B. [B]enthusiastic.
C. [C]confident.
D. [D]puzzled.