Question: Suppose a study estimated the population mean for a variable of interest using a 99% confidence interval. If the width of the estimated confidence interval

Suppose a study estimated the population mean for a variable of interest using a 99% confidence interval. If the width of the estimated confidence interval (the difference between the upper limit and the lower limit) is 600 and the sample size used in estimating the mean is 1,000, what is the population standard deviation?

Step by Step Solution

★★★★★

3.30 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

In this problem we are told the sample size n 1000 ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

645-M-S-O-T-P (1290).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

The file P08_05.xlsx contains salary data on all NFL players in each of the years 2002 to 2009. Because this file contains all players for each of these years, you can calculate the population mean...

In the United States, the population mean height for 3-year-old boys is 38 inches (www.kidsgrowth.com). Suppose a random sample of 15 non-U.S. 3-year-old boys showed a sample mean of 37.2 inches with...

A study has been undertaken to examine the effect of background music and assembly method on the productivity of workers on a production line for electronic circuit boards. Each of 8 workers has been...

(20 pts.) Select the most appropriate display for each of the following. (a) Workers' income and whether they are black, white, Asian, or Hispanic: (i) bar graph (ii) histogram (iii) pie chart (iv)...

Current Situation You are and Vice President and CFO at Warrington Regional Hospital, a not-for-profit tertiary care facility with 225 beds located in a growing city in Southern California. The chair...

Help me with this question Discuss BELOW and argue for the most appropriate ethical approach in each brief summary point below. 1. congresswoman fought to keep Medicare programs that allowed for...

STATISTICS FOR DECISION MAKING Dr. Azar Abizada HOMEWORK 4 Due Date: Wednesday, March 11th class time Problem 1 (26 points): Be careful, each part of this question is independent of one another. a)...

ABC IT Services wants to add a new service where it provides helpdesk services to each employee of a company. The going rate for such services is about $75 per service and it's typical to have one...

what is inside the router?

a firm is financed with 4 0 % risk - free debt and 6 0 % equity. The risk free rate is 7 %

GY Limited budgets to produce and sell 3,800 units of product R in the forthcoming year. The amount of capital investment attributable to product R will be 600,000 and GY Limited requires a rate of...

A random sample of 20 values was selected from a population, and the sample standard deviation was computed to be 360. Based on this sample result, compute a 95% confidence interval estimate for the...

Given the following null and alternative hypotheses H0: s2 100 HA: s2 100 a. Test when n 27, s 9, and a 0.10. Be certain to state the decision rule. b. Test when n 17, s 6, and a 0.05. Be...

A manager is interested in determining if the population standard deviation has dropped below 130. Based on a sample of n 20 items selected randomly from the population, conduct the appropriate...

Nonconstant Growth Stock Valuation Sumpkins Corporation does not pay any dividends because it is expanding rapidly and needs to retain all of its earungs. Howeve, vestors dividends, with the first...

Partially Correct (b) The degree of freedom: Your answer is incorrect. A coin-operated drink machine was designed to discharge a mean of 7 ounces of coffee per cup. In a test of the machine, the...

E4-40. Compute NOPAT Using Tax Rates from Tax Footnote The income statement for TJX Companies follows. TJX COMPANIES Consolidated Statements of Income Fiscal Year Ended (5 thousands) January 30, 2016...