2.In a random sample of 64 audited estate taxreturns, it was determined that the mean amount of additional tax owed was $3491 with a standard deviation of $2501. Construct and interpret a90% confidence interval for the mean additional amount of tax owed for estate tax returns.

Click here to view the standard normal distribution table (page 1).LOADING...

Click here to view the standard normal distribution table (page 2).LOADING...

Click here to view the table of critical t-values.LOADING...

Find and interpret a90% confidence interval for the mean additional amount of tax owed for estate tax returns. Select the correct choice below and fill in the answer boxes to complete your choice.

(Use ascending order. Round to the nearest dollar asneeded.)

A.

90% of taxes owed for estate tax returns are between $

nothing

and $

nothing

.

B.

One can be90% confident that the mean additional tax owed is between $

nothing

and $

nothing

.

C.

There is a90% probability that the mean additional tax owed is between $

nothing

and $

nothing

.

1.A simple random sample of size n=250 individuals who are currently employed is asked if they work at home at least once per week. Of the 250 employed individualssurveyed, 44 responded that they did work at home at least once per week. Construct a99% confidence interval for the population proportion of employed individuals who work at home at least once per week.

The lower bound is

nothing

. (Round to three decimal places asneeded.)