Mathematics, 24.04.2020 20:28 myanniespencer39

A simple random sample of 60 items resulted in a sample mean of 71. The population standard deviation is 18. a. Compute the 95% confidence interval for the population mean (to 1 decimal). ( , ) b. Assume that the same sample mean was obtained from a sample of 120 items. Provide a 95% confidence interval for the population mean (to 2 decimals). ( , ) c. What is the effect of a larger sample size on the margin of error

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 18:30

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Answers: 2

Answer

Mathematics, 21.06.2019 21:30

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms

Answers: 1

Answer

Mathematics, 21.06.2019 23:00

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

Answers: 2

Answer

Mathematics, 21.06.2019 23:00

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.

Answers: 3

Answer

You know the right answer?

A simple random sample of 60 items resulted in a sample mean of 71. The population standard deviatio...

Questions

Mathematics, 27.10.2020 03:50

Angle a and angle b are supplementary angles. If m angle a = (2x+10) and m angle b=(2x+2), then find the measure of angle a....