From a sample of 1201 Americans it was determined that 1139

From a sample of 1201 Americans, it was determined that 1139 of them lived in neighborhoods where the median house price was $175,000.

What approach should be used to compute the 99% confidence interval?

Select one:

a. z-interval

b. t-interval

c. Neither the z-interval Inor the t-interval may be used here.

Solution

this is a CI for proportion, and is calculated using

a. z-interval