Hypothesis test-equal population variances

Assignment Help Basic Statistics
Reference no: EM13111352

Each day the major stock markets have a group of leading gainers in price (stocks that go up the most). On one day the standard deviation in the percent change for a sample of 10 NASDAQ leading gainers was 15.8. On the same day, the standard deviation in the percent change for a sample of 10 NYSE leading gainers was 7.9 (USA Today, September 14, 2000). Conduct a test for equal population variances to see whether it can be concluded that there is a difference in the volatility of the leading gainers on the two exchanges. Use alpha = 0.10. What is your conclusion?

Reference no: EM13111352

Questions Cloud

Determining hypothesis test-difference of proportions : The general social survey is an annual survey given to about 1,500 U.S. adults selected at random. Each year, the survey contains several questions meant to probe the respondents' views of employment.
Which of the characteristics are true of spermatogenesis : Which of the following characteristics are true of spermatogenesis?
What evaluation criteria would be utilized select a supplier : Once would you have multiple rounds of bidding? What evaluation criteria would be utilized to initially select a supplier? What criteria are utilized to evaluate supplier performance?
Which of the secondary sex characteristics in females : Which of the following are secondary sex characteristics in females?
Hypothesis test-equal population variances : Each day the major stock markets have a group of leading gainers in price (stocks that go up the most). On one day the standard deviation in the percent change for a sample of 10 NASDAQ leading gainers was 15.8.
What kind of warranty was breached steel tubing : Harold expired to a home improvement supply store to buy some steel tubing to construct a swing set in his back yard. He said the salesperson at the supply store that he was relying on him to select the right tubing for the project
Compute the percent change in labor ratios : A department employs 3 types of workers: laborers earning $5 per hour, machine operators earning $9 per hour and maintenance workers earning $16 per hour.
Are the shape and size of bonsai trees the result : Are the shape and size of bonsai trees the result of natural selection or are the shape and size the result of the manner in which they have been managed?
Hypothesis testing-five step method z test : Treating Chronic Fatigue Syndrome Patients with chronic fatigue syndrome were tested, then retested after being treated with fluorocortisone.

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