denaesweetcandy denaesweetcandy

06-11-2022
Mathematics

Answered

An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. Suppose that the mean income is found to be $20.5 for a random sample of 1190 people. Assume the population standard deviation is known to be $11. Construct the 85% confidence interval for the mean per capita income in thousands of dollars. Round your answers to one decimal place.

Answer :

Other Questions

A child welfare officer asserts that the mean sleep of young babies is 14 hours a day. A random sample of 64 babies shows that the mean sleep was only 13 hours

57) A roundabout consists of a carriageway with a width of 4.5 meters and a circular inner area with a diameter of 16 meters.a) There is a fence around the inne

Lognormal Distribution: The following are the values of net worth (in thousands of dollars) of recent members of the executive branch of the U.S. government. Te

For this Activity, you will use a tax calculator to determine an expected refund amount for the given scenario. A married couple decides to file taxes jointly.

In a poll of 489 adults, 132 of then said they have a tattoo. Find critical value and margin of error, and then construct a 95% confidence interval for the prop

A rectangular bin is going to be made with a volume of 646 cm3. The base of the bin will be a square and the top will be open. The cost of the material for the

Organisms A and B start out with the same population size. Organism A's population doubles every day. After 5 days, the population stops growing and a virus cut

Find the exact solutions of the given equation in the interval . sin 4x= –2sin 2x

Determine if , and , where θ is the angle between u and v. Round your answer to two decimal places.

The area of a circle is 4x² + 12лx + 9л. a. What is an expression for the radius of the circle? b. What is the least possible integer value of x for the circle