User Account

All Pages

Null hypothesis of equality of population means

Assignment Help Basic Computer Science
Reference no: EM131890065

1. State the critical (tabled) value of t that would be used to reject the null hypothesis of equality of population means, for an independent groups t-test under each of the following conditions:

  1. H1: μ1 ≠ μ2; n1 = 20, n2 = 20; α = .05 40-2=38 40=2.02 for t. 30=2.04 for +/-2.02 Two Tails
  2. H1: μ1 > μ2; n1 = 30, n2 = 30; α = .01 One Tail >2.39
  3. H1: μ1 ≠ μ2; n1 = 10, n2 = 10; α = .01 +/-2.88
  4. H1: μ1 > μ2; n1 = 60, n2 = 60; α = .05 one tail >1.66
  5. H1: μ1 ≠ μ2; n1 = 15, n2 = 10; α = .01 +/-2.81

2. For a post hoc power analysis, d = .60, α = .05 for a two-tailed t test, and the number of people in each of two groups = 30, the power of the t-test is approximately 0.61.

  1. What was the risk of a Type II error?
  2. For the same effect size (.60), approximately what n per group would be needed to achieve power = .80?

Reference no: EM131890065

Questions Cloud

Find a presentation of interest on ted : Find a presentation of interest on TED r' and critique its content, visuals, and the presenter's skills (if applicable).
Probability that the first dispensing error : Find the expected number of prescriptions until the first dispensing error, the median number of prescriptions until the first dispensing error
Discuss economic cultural specific market data and firm data : Discuss economic, political, legal, cultural, specific market data and firm data preferably on s comparative basis to support your choices.
Working capital policy involves tradeoff : Working capital policy involves a tradeoff between easier operation and ____.
Null hypothesis of equality of population means : State the critical (tabled) value of t that would be used to reject the null hypothesis of equality of population means, for an independent groups t-test
How to show that perfect substitutes and cobb-douglas : How to show that perfect substitutes and Cobb-Douglas preferences are homothetic preferences.in REAL examples?
Create and present table that reports estimated treatment : ANOVA Project - Create and present a table that reports the estimated treatment (cell) means as well as the factor level means and the grand mean
Terms of variances and covariances : Write the ß of a portfolio in terms of the ß's of the individual assets and their weights. Show that the ß of the market portfolio is equal to 1.
Difference between an infant industry and a key industry : What is the difference between an infant industry and a key industry? Why do producers in both industries desire protection against foreign imports?

Reviews

Write a Review

Basic Computer Science Questions & Answers

  Dream computer system

Using the Internet, search and develop your "dream computer system." This can be a laptop or PC. It should include the components discussed in this chapter including processor speed, keyboard, memory, RAM, internal and external drives, mouse, headset..

  Large number of networks

The Internet is made up of a large number of networks. Their arrangement determines the topology of the Internet. A considerable amount of information about the Internet topology is available on line.

  Create a visualization that includes additional information

Create a visualization that includes this additional information.

  The graphics frame class and the drawable interface

This lab makes use of the GraphicsFrame class and the Drawable interface. Your missions is to create the class Airplane.

  Inflation rate during the last year

Us government t-bills had the nominal rates of return of 5.61percent. What is the real rate of return for a T-bill?

  Wrong types of controls

What went wrong? Did Al use the wrong types of controls? Did he use the right types of controls but fail to design or implement them properly?

  Replacement cost or net realizable value

Trying to understand under what circumstances a company would use replacement cost or net realizable value to write down its inventory.

  Describe an algorithm for a turing machine

Describe an algorithm for a Turing machine which receives the integer n as input and proceeds to write the description of the n-th Turing machine from the standard enumeration on its tape.

  Determine the prime factorization

You are using the RSA algorithm to encrypt and decrypt messages. Your public key is n = 119 and e = 37. (a) Determine the prime factorization of n; that is, find your prime numbers p and q. Note that this is the expensive step that Eve would have t..

  Manages changes in an it project

What are some tools or approaches that a project manager uses to manages changes in an IT project? Please be as specific as possible.

  Ideal communication mechanism

The Internet is an ideal communication mechanism because of its openness and anonymity but people must make ethical decisions about how to use this power.

  Evaluate events that could delay the closing of a project

Identify events that could delay the closing of a project or phase. Evaluate which event you believe would cause the longest delay and explain why. Provide an example to justify your answer

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