Purchase Solution

Statistics: T-test

Not what you're looking for?

Ask Custom Question

Create a real-world situation or problem involving children who have ADHD. Within state the independent and dependent variables you would study, an explanation of whether an independent-samples or related-samples t test is most appropriate, the statistical null and alternative hypotheses, a description of what information the effect size would tell that the probability value would not tell, and the hypothetical results using correct APA format.

Purchase this Solution
Solution Summary

Hypothesis testing on two independent variables using T-test.

Solution provided by:
Chris Busu, PhD (IP)
Education
  • BSc, University of Bucharest
  • MSc, Ovidius
  • MSc, Stony Brook
  • PhD (IP), Stony Brook
Recent Feedback
  • "Thank you "
  • "Thank You Chris this draft really helped me understand correlation."
  • "Thanks for the prompt return. Going into the last meeting tonight before submission. "
  • "Thank you for your promptness and great work. This will serve as a great guideline to assist with the completion of our project."
  • "Thanks for the product. It is an excellent guideline for the group. "
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

View More Free Quizzes
Related BrainMass Solutions

  • T-Statistics: Standard Errors

    Test statistics is given as t = Estimate of Coefficient/Standard Error of coefficient Test statistics for Ui is t=-0.24/0.08 = -3 Test statistics for Ei is t=0.2/0.06 = 3.33 Test statistics for Ii is t=-0.69/0.16 = -4.3125 Test statistics

  • Population & Sample Size Questions

    Test of two populations, small sample size (t-statistics) 4. When would you use two population test with a small sample size in your education? 1.

  • Critical and Computed Values for a T Test

    This solution is comprised of a detailed explanation of calculating critical and test statistics for a T Test.

  • Find critical value and test statistics for some t test questions

    on find critical value and test statistics for some t test questions.

  • T - Statistic vs. Z-Statistic

    Marx (2005) Introduction to Mathematical Statistics and Its Applications, Prentice Hall The solution explains why t-statistic, as opposed to a z-statistic, used to test small populations and when the t-statistic approximates the z-statistic. 262 words

  • Test a hypothesis

    The null hypothesis is: mu=45 The alternative hypothesis is: mu is not 45 The type of test statistics: z, t, chi square, f t The result of the test statistics (rounded to at least three decimals) t=(xbar-45)/s*sqrt(n)

  • Sampling Distribution and Test Proportion

    Sample statistics: p^ = 0:17, n = 200. Since np=0.17*200=34>0, n(1-p)=200*(1-0.17)=166>5, We could use the normal distribution. Ho: p>=0.22 Ha: p<0.22 This is a one tailed t test.

  • Population Variance of Sample Statistics

    Sample statistics: x1 (bar) = 520, s1 = 25, n1 = 7 x2 (bar) = 500, s2= 55, n2 = 6 H0: H1: We use t-test, and the test statistic is =0.8210 The critical value is which is the t-score with respect to 0.1, and degree of freedom approximate

  • Testing a Null Hypothesis on a Random Sample of 100

    Solution: Since the sample size is less than 30 we have to use the t-test statistics.

  • Statistics and Hypothesis Testing Problems

    Use a t-test to test the claim about the population mean at the given level of significance using the given sample statistics. Claim: = 640.6 = 0:05 Sample statistics: x = 643, s = 4:0, n = 10.

View More Related Solutions