Business, 03.08.2021 04:00, minosmora01

A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s squareds2, is determined to be 11.611.6. Complete parts (a) through (c). (a) Construct a 90% confidence interval for sigma squaredσ2 if the sample size, n, is 20. The lower bound is 7.317.31. (Round to two decimal places as needed.) The upper bound is 21.7921.79. (Round to two decimal places as needed.) (b) Construct a 90% confidence interval for sigma squaredσ2 if the sample size, n, is 30. The lower bound is 7.907.90. (Round to two decimal places as needed.) The upper bound is 1919. (Round to two decimal places as needed.) How does increasing the sample size affect the width of the interval? The width does not change The width increases The width decreases

Answers: 2

Show answers

Other questions on the subject: Business

Business, 22.06.2019 16:50, amayarayne5

Arestaurant that creates a new type of sandwich is using (blank) as a method of competition.

Answers: 1

continue

Business, 22.06.2019 21:50, nakarelinp0p303

scenario: hawaii and south carolina are trading partners. hawaii has an absolute advantage in the production of both coffee and tea. the opportunity cost of producing 1 pound of tea in hawaii is 2 pounds of coffee, and the opportunity cost of producing 1 pound of tea in south carolina is 1/3 pound of coffee. which of the following statements is true? a. south carolina should specialize in the production of both tea and coffee. b. hawaii should specialize in the production of tea, whereas south carolina should specialize in the production of coffee. c. hawaii should specialize in the production of coffee, whereas south carolina should specialize in the production of tea. d. hawaii should specialize in the production of both tea and coffee.

Answers: 1

continue

Business, 23.06.2019 00:40, Cooldude4676

In 2017, "a public university was awarded a federal reimbursement grant" of $18 million to carry out research. of this, $12 million was intended to cover direct costs and $6 million to cover overhead. in a particular year, the university incurred $4 million in allowable direct costs and received $3.4 million from the federal government. it expected to incur the remaining costs and collect the remaining balance in 2018. for 2017 it should recognize revenues from the grant of

Answers: 3

continue

Business, 23.06.2019 01:00, F00Dislife

What are the benefits of different types of career education, like community colleges, vocational training programs, and four-year colleges?

Answers: 3

continue

Do you know the correct answer?

A simple random sample of size n is drawn from a population that is known to be normally distributed...