Determining confidence interval for the population variance

Assignment Help Basic Statistics
Reference no: EM132495592

A simple random sample of size 20 is drawn from a population that is known to be normally distributed. The sample standard deviation is determined to be 12.6

(i) Construct a 90% confidence interval for the population variance

(ii) Construct a 90% confidence interval for the population standard deviation

Reference no: EM132495592

Questions Cloud

What is the companys average accounts receivable : The company averages $8,000 in sales each day (all customers take credit). What is the company's average accounts receivable?
Compute a t-test for independent groups : Suppose we wanted to test the hypothesis that a control group of cancer patients (Group 1) would report higher mean pain ratings than an experimental
What do meant by inventory management : How much cash will be freed up? Do not round intermediate calculations. Round your answer to the nearest dollar. What do meant by Inventory Management
Perform a comparative analysis of the composition : Perform a comparative analysis of the composition of the items of budget and expenditure over the 15-year period between the two countries chosen and comment
Determining confidence interval for the population variance : A simple random sample of size 20 is drawn from a population that is known to be normally distributed. The sample standard deviation is determined to be 12.6
What is spot exchange rate between the euro and the dollar : The same model costs 670 euros in France. If purchasing power parity holds, what is the spot exchange rate between the euro and the dollar?
Compute the price of a forward contract on the same ZCB : Compute the price of a forward contract on the same ZCB of the previous question where the forward contract matures at time t = 4
Find what are the benefits of the corporation : Find What are the benefits of the corporation in comparison with the partnership and proprietorship structures? How is equity treated and reported differently.
Reflect on what competencies you would like to develop : Critically compare your results with those of the two people who evaluated you and Reflect on what competencies you would like to develop in order to function

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd