Question 11 - This problem is dealing with . . .

a population standard deviation

Question 11 - What type of confidence interval would you construct?

1 sample z interval at a 95% confidence level

2 sample z interval at a 95% confidence level

1 sample t interval at a 95% confidence level

2 sample t interval at a 95% confidence level

Question 11 - The conditions you would check would be (select all correct answers)

n(p-hat) > or equal to 10 and n(1 - p-hat) > or equal to 10

creating a box-plot to check for Normality

Question 11 - An appropriate conclusion would be

We are 95% confident that the interval captures the true proportion of residents who favor constructing the bypass.

We are 90% confident that the interval captures the true proportion of residents who favor constructing the bypass.

We are 95% confident that the interval captures the true mean of residents who favor constructing the bypass.

We are 95% confident that the interval captures the true proportion of residents who oppose constructing the bypass.

Question 12 - What type of confidence interval would you construct?

1 sample t interval at a 90% confidence level

1 sample z interval at a 90% confidence level

2 sample z interval at a 90% confidence level

2 sample t interval at a 90% confidence level

Question 12 - What conditions need to be checked (select all that apply)

n(p-hat) > or equal to 10 and n(1 - p-hat) > or equal to 10

Constructing a box plot to check for Normality

An appropriate conclusion would be . . .

We are 90% confident that the interval captures the true mean DRP score of Henrico County 3rd graders.

We are 95% confident that the interval captures the true mean DRP score of Henrico County 3rd graders.

We are 90% confident that the interval captures the true proportion of DRP scores of Henrico County 3rd graders.

We are 90% confident that the interval captures the true median DRP score of Henrico County 3rd graders.

Would you agree or disagree with the researcher's claim, and why?

I would agree, because 32 is below the interval, meaning that the average DRP score in Henrico County is different than the national average.

I would disagree because 32 is below the interval, meaning that the average DRP score in Henrico County is different than the national average.

AP Statistics - Test 8A

Quiz

•

Mathematics

•

11th - 12th Grade

•

Practice Problem

•

Hard

•

CCSS

HSS.IC.B.4, 8.EE.C.7B, 6.SP.B.4

+8

Standards-aligned

Used 24+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Question 1

A

B

C

D

E

Tags

CCSS.RI. 9-10.7

CCSS.RI.11-12.7

CCSS.RL.11-12.7

CCSS.RL.8.7

CCSS.RL.9-10.7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Question 2

A

B

C

D

E

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Question 3

A

B

C

D

E

Tags

CCSS.8.EE.C.7B

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Question 4

A

B

C

D

E

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Question 5

A

B

C

D

E

Tags

CCSS.8.EE.C.7B

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Question 6

A

B

C

D

E

Tags

CCSS.8.EE.C.7B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Question 7

A

B

C

D

E

Tags

CCSS.8.EE.C.7B

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