A random sample of 60 accounts gives a sample variance of 1,228. Give a 95% confidence interval
Question:
A random sample of 60 accounts gives a sample variance of 1,228. Give a 95% confidence interval for the variance of all accounts.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 60% (10 reviews)
n 60 s 2 1228 Well use ...View the full answer
Answered By
Nyron Beeput
I am an active educator and professional tutor with substantial experience in Biology and General Science. The past two years I have been tutoring online intensively with high school and college students. I have been teaching for four years and this experience has helped me to hone skills such as patience, dedication and flexibility. I work at the pace of my students and ensure that they understand.
My method of using real life examples that my students can relate to has helped them grasp concepts more readily. I also help students learn how to apply their knowledge and they appreciate that very much.
4.00+
1+ Reviews
10+ Question Solved
Related Book For
Complete Business Statistics
ISBN: 9780077239695
7th Edition
Authors: Amir Aczel, Jayavel Sounderpandian
Question Posted:
Students also viewed these Statistics questions
-
A random sample of 60 professional economists was asked to predict whether next year's inflation rate would be higher than, lower than, or about the same as that in the current year. The results are...
-
A random sample of 60 binomials trials resulted in 18 successes. Test the claim that the population proportion of successes exceeds 18%. Use a level of significance of 0.01. (a) Check Requirements...
-
A 95% confidence interval for the proportion of all people who have salary greater than $85,000 has which of the following limits? a. 0.438 to 0.662 b. 0.452 to 0.648 c. 0.422 to 0.678 d. 0.468 to...
-
Determine whether the given functions are even, odd, or neither. a. x sin(x) c. x cos(x) e. x sin(x) + x sin(x) f. x sin(x) + x cos(x) even h. x sin(x) + x cos(x) j. x cos (x) + x cos(x) b. x sin(x)...
-
Any consumer trying to decide whether to buy a given good or service will base the decision on his or her reservation price and the existing market price. When making this decision, what does the...
-
A fair coin is tossed 2,500 times. Find a number m so that the chance that the number of heads is between 1,250 m and 1,250 + m is approximately 2/3.
-
Which of the following statements about lift is false? a. Lift can be interpreted as how much more likely the antecedent and consequent itemsets occur together than if they were totally unrelated. b....
-
Kroger, Safeway Inc., and Winn-Dixie Stores Inc. are three grocery chains in the United States. Inventory management is an important aspect of the grocery retail business. Recent balance sheets for...
-
You are a Morgan Stanley portfolio manager of a risky portfolio with an expected rate of return of 19% and a standard deviation of 28%. The T-bill rate is 7%. Suppose your client decides to invest in...
-
Suppose that 21 observations are taken at random from an exponential distribution for which the mean is unknown ( > 0), the average of 20 of these observations is 6, and although the exact value of...
-
A sensitive measuring device should not have a large variance in the errors of measurements it makes. A random sample of 41 measurement errors gives s2 = 102. Give a 99% confidence interval for the...
-
In problem 621, give a 99% confidence interval for the variance of the number of miles that may be driven on a tire. In problem A tire manufacturer wants to estimate the average number of miles that...
-
Given that the inverse demand function is p(Q) = a - bQ + (c/2)Q2, derive the marginal revenue function. Compare the corresponding marginal revenue curve to the linear one (where c = 0) and show how...
-
What is the primary object of a logistic design and analysis study? Is it usually a one time activity? Why is it important to develop supporting logic to guide the logistic and supply chain planning...
-
What strategic alliances would make the most sense for amazon and why ? Examples: 1. Developing strategic partnerships with other large companies such as Walmart, Target, and Apple. 2. Establishing...
-
What is the economic relevance of human indecisiveness? movie Evaluate a couple of decision-making techniques or problem-solving models and how these represent actual decision processes. Elaborate on...
-
What do you perceive are the different roles and activities commonly required for human resource managers? How are human resources managerial roles and activities affected by aspects of leadership...
-
what you learned in this unit Business Process Management development trends importance of business process management and improvement in an organization The role of RPA in business process...
-
Air at 15C and 1 atm is flowing over a 0.3-mlong plate at 65C at velocity of 3.0 m/s. Using EES, Excel, or other software, plot the following on a combined graph for the range of x = 0.0 m to x = x...
-
Interest Compounded Annually. When P dollars is invested at interest rate i, compounded annually, for t years, the investment grows to A dollars, where A = P(1 + i) t . Trevor's parents deposit $7800...
-
Given that the data in Exercise 3 were obtained from students who made a decision to submit their SAT scores to a Web site, what type of sample is given in that exercise? If we had a much larger...
-
Refer to Data Set 12 in Appendix B, and use the heights of U.S. Presidents and the heights of their main opponents in the election campaign. Does there appear to be a correlation? Construct a scatter...
-
Refer to Data Set 6 in Appendix B, and use the brain volumes (cm3) and IQ scores. A simple hypothesis is that people with larger brains are more intelligent and thus have higher IQ scores. Does the...
-
Using the following information: a. The bank statement balance is $3,048. b. The cash account balance is $3,300. c. Outstanding checks amount to $755. d. Deposits in transit are $809. e. The bank...
-
Determine the average tax rate and the marginal tax rate for each of the following instances: Use the Tax Tables for taxpayers with taxable income under $ 1 0 0 , 0 0 0 and the Tax Rate Schedules for...
-
A machine was bought on 1 st January 2 0 1 7 for $ 1 2 , 0 0 0 . The policy is to depreciate the machine at 1 0 % on reducing balance method at the end of each year, ending on 3 1 st December....
Study smarter with the SolutionInn App