Question 1

Explain what your P-value means in this context.

Accepted Answer

The answer of Explain what your P-value means in this...

Question 2

Test an appropriate hypothesis and state your conclusion.

Accepted Answer

The answer of Test an appropriate hypothesis and state your...

Question 3

Was your test one-tail upper tail, lower tail, or two-tail? Explain why you chose that kind
of test in this situation.

Accepted Answer

The answer of Was your test one-tail upper tail, lower...

Question 4

Test an appropriate hypothesis and state your conclusion.

Accepted Answer

The answer of Test an appropriate hypothesis and state your...

Question 5

Was your test one-tail upper tail, lower tail, or two-tail? Explain why you choose that kind
of test in this situation.

Accepted Answer

The answer of Was your test one-tail upper tail, lower...

Question 6

Test an appropriate hypothesis and state your conclusion.

Accepted Answer

The answer of Test an appropriate hypothesis and state your...

Question 7

Interpret the confidence interval in this context.

Accepted Answer

The answer of Interpret the confidence interval in this context....

Question 8

Should the admissions officers conclude that the percentage of private school students in
their applicant pool is lower than the statewide enrollment rate of 12%? Explain.

Accepted Answer

The answer of Should the admissions officers conclude that the...

Question 9

Was your test one-tail upper tail, lower tail, or two-tail? Explain why you chose that kind
of test in this situation.

Accepted Answer

The answer of Was your test one-tail upper tail, lower...

Question 10

They actually select a random sample of 450 applications, and find that 46 of those
students attend private schools. Create the confidence interval.

Accepted Answer

The answer of They actually select a random sample of...

Question 11

Should the company conclude that the percentage of cell phone owners in this age group
who use their phone to go online is different from 63%? Explain.

Accepted Answer

The answer of Should the company conclude that the percentage...

Question 12

The company wants to estimate the true percentage of 16- to 24-year old cell phone
owners who use their phone to go online to within $$\pm 7.5 \% \text {, with } 95 \%$$ 
fidence. How
many cell phone owners in this age group should they sample?

Accepted Answer

The answer of The company wants to estimate the true...

Question 13

Test an appropriate hypothesis and state your conclusion. (Make sure to check any
necessary conditions and to state a conclusion in the context of the problem.)

Accepted Answer

The answer of Test an appropriate hypothesis and state your...

Question 14

Explain what your P-value means in this context.

Accepted Answer

The answer of Explain what your P-value means in this...

Question 15

Was your test one-tail upper tail, one-tail lower tail, or two-tail? Explain why you chose
that kind of test in this situation.

Accepted Answer

The answer of Was your test one-tail upper tail, one-tail...

Question 16

Explain what 95% confidence means in this context.

Accepted Answer

The answer of Explain what 95% confidence means in this...

Question 17

Explain what 90% confidence means in this context.

Accepted Answer

The answer of Explain what 90% confidence means in this...

Question 18

They ignore your advice in Question 1 and just select a random sample of 300 cell phone
users aged 16 to 24, and find that 206 of those surveyed use their phone to go online. Create
the confidence interval.

Accepted Answer

The answer of They ignore your advice in Question 1...

Question 19

Explain what your P-value means in this context.

Accepted Answer

The answer of Explain what your P-value means in this...

Question 20

Interpret the confidence interval in this context.

Accepted Answer

The answer of Interpret the confidence interval in this context....

Quiz 8: Regression, Associations, and Predictive Modeling

Explain what your P-value means in this context.

Test an appropriate hypothesis and state your conclusion.

Was your test one-tail upper tail, lower tail, or two-tail? Explain why you chose that kind of test in this situation.

Test an appropriate hypothesis and state your conclusion.

Was your test one-tail upper tail, lower tail, or two-tail? Explain why you choose that kind of test in this situation.

Test an appropriate hypothesis and state your conclusion.

Interpret the confidence interval in this context.

Should the admissions officers conclude that the percentage of private school students in their applicant pool is lower than the statewide enrollment rate of 12%? Explain.

Was your test one-tail upper tail, lower tail, or two-tail? Explain why you chose that kind of test in this situation.

They actually select a random sample of 450 applications, and find that 46 of those students attend private schools. Create the confidence interval.

Should the company conclude that the percentage of cell phone owners in this age group who use their phone to go online is different from 63%? Explain.

The company wants to estimate the true percentage of 16- to 24-year old cell phone owners who use their phone to go online to within $\pm 7.5 \% \text {, with } 95 \%$ fidence. How many cell phone owners in this age group should they sample?

Test an appropriate hypothesis and state your conclusion. (Make sure to check any necessary conditions and to state a conclusion in the context of the problem.)

Explain what your P-value means in this context.

Was your test one-tail upper tail, one-tail lower tail, or two-tail? Explain why you chose that kind of test in this situation.

Explain what 95% confidence means in this context.

Explain what 90% confidence means in this context.

They ignore your advice in Question 1 and just select a random sample of 300 cell phone users aged 16 to 24, and find that 206 of those surveyed use their phone to go online. Create the confidence interval.

Explain what your P-value means in this context.

Interpret the confidence interval in this context.

Quiz 8: Regression, Associations, and Predictive Modeling

Explain what your P-value means in this context.

Test an appropriate hypothesis and state your conclusion.

Was your test one-tail upper tail, lower tail, or two-tail? Explain why you chose that kind of test in this situation.

Test an appropriate hypothesis and state your conclusion.

Was your test one-tail upper tail, lower tail, or two-tail? Explain why you choose that kind of test in this situation.

Test an appropriate hypothesis and state your conclusion.

Interpret the confidence interval in this context.

Should the admissions officers conclude that the percentage of private school students in their applicant pool is lower than the statewide enrollment rate of 12%? Explain.

Was your test one-tail upper tail, lower tail, or two-tail? Explain why you chose that kind of test in this situation.

They actually select a random sample of 450 applications, and find that 46 of those students attend private schools. Create the confidence interval.

Should the company conclude that the percentage of cell phone owners in this age group who use their phone to go online is different from 63%? Explain.

The company wants to estimate the true percentage of 16- to 24-year old cell phone owners who use their phone to go online to within ±7.5%, with 95%\pm 7.5 \% \text {, with } 95 \%±7.5%, with 95% fidence. How many cell phone owners in this age group should they sample?

Test an appropriate hypothesis and state your conclusion. (Make sure to check any necessary conditions and to state a conclusion in the context of the problem.)

Explain what your P-value means in this context.

Was your test one-tail upper tail, one-tail lower tail, or two-tail? Explain why you chose that kind of test in this situation.

Explain what 95% confidence means in this context.

Explain what 90% confidence means in this context.

They ignore your advice in Question 1 and just select a random sample of 300 cell phone users aged 16 to 24, and find that 206 of those surveyed use their phone to go online. Create the confidence interval.

Explain what your P-value means in this context.

Interpret the confidence interval in this context.

The company wants to estimate the true percentage of 16- to 24-year old cell phone owners who use their phone to go online to within $\pm 7.5 \% \text {, with } 95 \%$ fidence. How many cell phone owners in this age group should they sample?