User Account

All Pages

Confidence interval for the difference

Assignment Help Basic Statistics
Reference no: EM131429701

Suppose that ten identical twins were reared apart and the mean difference between the high school GPA of the twin brought up in wealth and the twin brought up in poverty was 0.07. If the standard deviation of the differences was 0.5, find a 95% confidence interval for the difference. Assume the distribution of GPA's is approximately normal.

Reference no: EM131429701

Questions Cloud

Discuss the challenges related to quality management : Determine 1 key deferentiating factor between the new approach to quality and performance management that you chose and past approaches. Indicate whether or not the new approach is likely to derive better performance results than past approaches...
Display a two-dimensional, gray-scale cloud scene : The light and dark regions of the clouds are to be modeled using points of varying sizes and inter point spacing. (For example, a very light region can be modeled with small, widely spaced, light-gray points. Similarly, a dark region can be modele..
Develop a strategy to include these benefits : As your organization grows, the possibility of having child-care and elder-care issues grow. You have been tasked to head up a small committee to assess the possibility of including these benefits into the current compensation package. Identify at..
Develop an efficient algorithm for computing four vertices : A line specified by two endpoints and a width can be convened to a rectangular polygon with four vertices and then displayed using a scan-line method. Develop an efficient algorithm for computing the four vertices needed to define such a rectangle..
Confidence interval for the difference : If the standard deviation of the differences was 0.5, find a 95% confidence interval for the difference. Assume the distribution of GPA's is approximately normal.
Discuss about the adjustment and retraining notification act : Choose two (2) factors from those discussed in the textbook that may cause a possible breach of an implied contract. Suggest two (2) strategies that an employer may use to avoid these possible breaches from occurring. Justify your response.
Write a program to output a line graph of three data sets : The data sets are to be scaled to fit within a defined coordinate range for a display window. Each data set is to be plotted with a different line style.
Discuss the importance of a job analysis : A hiring manager needs your advice and assistance in filling several customer service representative positions. As a human resource recruiter, you must sit down with the hiring manager and collect some particular data for a job analysis, which you..
Number of drivers in sample : A random sample of 13 drivers who drive to work is selected. Use the binomial probabilities table (Table I of Appendix B) or technology to find to 3 decimal places the probability that the number of drivers in this sample of 13 who regularly excee..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Interval for population mean stopping distance

(a) Can we say that the data are approximately normally distributed? (b) Find a 95% con?dence interval for population mean stopping distance μ.

  Obtain the transition probability matrix

He is twice as likely to visit city X than the other city. Obtain the transition probability matrix. Also determine the proportionate visits by him to each of the cities in the long run.

  Let three fair coins be tossed let a all heads of all

let three fair coins be tossed. let a all heads of all tails b at least two heads and c at most two tails.1. list

  Test statistic for testing difference in population variaces

A sample of 26 automobiles 2 yrs. old showed a standard deviation of $170. What is the test statistic for testing the difference between these population variances at alpha =.01?

  The states of oregon and washington

Douglas Boats is a supplier of boating equipment for the states of Oregon and Washington.

  A toll bridge charges 100 for passenger cars and 250 for

a toll bridge charges 1.00 for passenger cars and 2.50 for other vehicles. suppose that during daytime hours 60 of all

  The distribution of the amount of money in savings accounts

the distribution of the amount of money in savings accounts for university of alabama students has an average of 950

  Find the possibility that the household selected

the probability that a household is both prosperous and educated is P (A and B) = 0.082. What is the probability P (A or B) that the household selected is either prosperous or educated.

  What hypotheses will you test

According to one study, 21% of all college students nationwide identify themselves as politically liberal. You suspect this percentage may be different at Swarthmore. You plan a survey of first-year students to test your suspicion. What hypotheses..

  Calculate as standard error of number of undersized corks

If he were to randomly select 120 corks from the next box, then how many of these corks would John expect to be undersized?

  Discuss the business uses of time series forecasting

What is the procedure involved in performing hypothesis tests and discuss the business uses of time series forecasting.

  Write up about qualitative research

Write up About Qualitative Research

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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