1.You begin by looking at your data to understand them better and to know what methods of inference you can safely use.

When creating confidence intervals, which of the following variables will require you to check then

p

10

np10

andn

(

1

p

)

10

n(1-p)10

conditions? (Check all that might apply...there *may* be more than one answer.

• River_List Price
• River_Days to Sell
• River_PMI
• NoRiver_List Price
• NoRiver_Days to Sell
• River_Sales Price
• NoRiver_PMI
• NoRiver_Sales Price

Compute the 98% confidence interval for the proportion of those condos without a river view that have PMI. If you don't have enough information to compute the confidence interval, enter "DNE" in both boxes below.

(,) (Round your answers to 4 decimal places)

2.Compute the 92% confidence interval for the proportion of those condos without a river view that have PMI. If you don't have enough information to compute the confidence interval, enter "DNE" in both boxes below.

(,) (Round your answers to 4 decimal places)

For the 81% confidence interval, compute the margin of error. If you don't have enough information to compute the margin of error, enter "DNE" in the box below.

3.This part of your analysis looks at the sales prices for both kinds of condos...those with a view, and those without.

Compute the 95% confidence interval for the Total Sales Price of condos WITH a view.

(,)

(Round answers to 3 decimal places)

Compute the 95% confidence interval for the Total Sales Price of condos WITHOUT a view. (,)

(Round answers to 3 decimal places)

4.Which of the following are correctly worded statements about the variable River_List Price given the sample we have? Check all that apply. There may be more than one answer.

• We are 90% confident that the interval (402.754,531.515) covers the population mean list price of condos with a view.
• There is a 95% chance that the population mean
• falls within $77,442 of $467,134.
• There is a 90% chance that the population proportion is a value between $402,754 and $531,515.
• We are 99% confident that the interval (389.692,544.576) covers the population proportion of condos with a view.
• All of the above.
• None of the above.