8. A confidence interval is defined as an interval of values calculated from ___

Question

8. A confidence interval is defined as an interval of values calculated from _______ to estimate ________.

a. population parameters; sample standard deviation

b. population parameters; the value of a sample statistic

c. sample statistics; sample mean

d. sample statistics; the value of a population parameter

9. Which one of the following scenarios requires a t-test?

a. Population µ and are known and the purpose is to compare sample with µ.

b. Population µ is known, is unknown, and the purpose is to compare sample with µ.

c. Population µ is known, is unknown, and the purpose is to compare a single value with µ.

d. Population µ and are unknown and the purpose is to compare sample with µ.

10. Independent samples are also referred to as _________.

a. within-population design

b. within-subject design

c. between-subject design

d. between-population design

Explanation / Answer

(8)

ANSWER:

d. sample statistics; the value of a population parameter

(9)

ANSWER:

b. Population µ is known, is unknown, and the purpose is to compare sample with µ.

(10)

ANSWER:

c. between-subject design

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