Mathematics, 28.07.2020 05:01 johndoesnutz4690

A researcher wishes to estimate the number of households with two cars. A previous study indicates that the proportion of households with two cars is 25%. How large a sample is needed in order to be 99% confident that the sample proportion will not differ from the true proportion by more than 3%? A) 4.
B) 1132.
C) 1842.
D) 1382.

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 14:00

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Answers: 1

Answer

Mathematics, 21.06.2019 18:00

What is an alternate exterior angle

Answers: 1

Answer

Mathematics, 21.06.2019 19:00

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Answers: 3

Answer

Mathematics, 21.06.2019 21:40

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?

Answers: 2

Answer

You know the right answer?

A researcher wishes to estimate the number of households with two cars. A previous study indicates t...

Questions

Mathematics, 20.11.2021 14:00

6x-x^2>8 Solve and express using interval notation....

Mathematics, 20.11.2021 14:00

Luka, Zara, and Kim simplified the following expression: -3(x+4) – 2(5x – 6). Their work is shown below. Who simplified the expression correctly? Ex...