The sampling distribution of the ratio of independent

24. The sampling distribution of the ratio of independent sample variances extracted from two normal populations with
equal variances is the _____.
a.
χ
2
distribution
b. normal distribution
c. Z distribution
d. t distribution
ANSWER: c
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Inferences about Two Population Variances
LEARNING OBJECTIVES: MBST.ASWC.18.11.02 - 11.2
NATIONAL STANDARDS: United States - Business Program.1: - Reflective Thinking
KEYWORDS: Bloom's: Knowledge
25. The 95% confidence interval estimate for a population variance when a sample variance of 30 is obtained from a
sample of 12 items is _____.
b
POINTS: 1
DIFFICULTY: Moderate
REFERENCES: Inferences about a Population Variance
LEARNING OBJECTIVES: MBST.ASWC.18.11.01 - 11.1
NATIONAL STANDARDS: United States - Business Program.1: - Reflective Thinking
KEYWORDS: Bloom's: Comprehension
26. The 99% confidence interval estimate for a population variance when a sample standard deviation of 12 is obtained
from a sample of 10 items is _____.
c
POINTS: 1
DIFFICULTY: Moderate
REFERENCES: Inferences about a Population Variance
LEARNING OBJECTIVES: MBST.ASWC.18.11.01 - 11.1
NATIONAL STANDARDS: United States - Business Program.1: - Reflective Thinking
KEYWORDS: Bloom's: Comprehension
27. The 90% confidence interval estimate for a population standard deviation when a sample variance of 50 is obtained

Chapter 11 - Inferences about Population Variances
from a sample of 15 items is _____.
c
POINTS: 1
DIFFICULTY: Moderate
REFERENCES: Inferences about a Population Variance
LEARNING OBJECTIVES: MBST.ASWC.18.11.01 - 11.1
NATIONAL STANDARDS: United States - Business Program.1: - Reflective Thinking
KEYWORDS: Bloom's: Comprehension
28. To avoid the problem of not having access to tables of the F distribution with values given for the lower tail when a
two-tailed test is required, let the smaller sample variance be _____.
a. the denominator of the test statistic
b. the numerator of the test statistic
c. at least 1
d. None of the answers is correct.
ANSWER: