Proportions and Critical Values

Proportions and Critical Values

11th Grade

20 Qs

quiz-placeholder

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Proportions and Critical Values

Proportions and Critical Values

Assessment

Quiz

Mathematics

11th Grade

Hard

Created by

Anthony Clark

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A study found that 68% of the population owns a home. In a random sample of 150 households, 92 owned a home. At the α = 0.01 level, is there enough evidence to reject the claim? Choose the correct hypotheses.

H0: p = 0.68

Ha: p ≠ 0.68

H0: μ = 0.68

Ha: μ ≠ 0.68

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A study found that 68% of the population owns a home. In a random sample of 150 households, 92 owned a home. At the α = 0.01 level, is there enough evidence to reject the claim? Find the z-score.

z = -1.75

z = 1.75

z = -0.08

z = 0.08

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A study found that 68% of the population owns a home. In a random sample of 150 households, 92 owned a home. At the α = 0.01 level, is there enough evidence to reject the claim? What is the correct conclusion?

Fail to reject the null hypothesis

Reject the null hypothesis

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The percentage of female physicians is 27%. In a survey of physicians, 45 of the 120 were women. Is there sufficient evidence at the α = 0.01 to claim that the proportion of women physicians is greater than 27%?

H0: p = 0.27

Ha: p > 0.27

H0: p = 0.27

Ha: p < 0.27

H0: p = 0.27

Ha: p ≠ 0.27

H0: p > 0.27

Ha: p = 0.27

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The percentage of female physicians is 27%. In a survey of physicians, 45 of the 120 were women. Is there sufficient evidence at the α = 0.01 to claim that the proportion of women physicians is greater than 27%? Find the z-score.

z = -2.59

z = -0.005

z = 2.59

z = 0.005

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The percentage of female physicians is 27%. In a survey of physicians, 45 of the 120 were women. Is there sufficient evidence at the α = 0.01 to claim that the proportion of women physicians is greater than 27%? Which is closest to the p-value?

0.0005

0.005

0.05

0.5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The percentage of female physicians is 27%. In a survey of physicians, 45 of the 120 were women. Is there sufficient evidence at the α = 0.01 to claim that the proportion of women physicians is greater than 27%? What is the correct conclusion?

Fail to reject the null hypothesis

Reject the null hypothesis

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