Purchase Solution

Two-sample tests of hypothesis

Not what you're looking for?

Ask Custom Question

The null and alternate the hypotheses are:

H0: µ1 = µ2
H1: µ1 ≠ µ2
A random sample of 10 observations from one population revealed a sample mean of 23 and a sample deviation of 4. A random sample of 8 observations from another population revealed a sample mean of 26 and a sample standard deviation of 5. At the .05 significance level, is there a difference between the population means?
a. state the decision rule
b. compute the pooled estimate of the population variance
c. compute the test statistic
d. state your decision about the null hypothesis
e. estimate the p-value

Purchase this Solution
Solution Summary

The solution answers the question(s) below.

Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

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

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.

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.

View More Free Quizzes
Related BrainMass Solutions

  • Hypothesis testing problems :MCQ

    432211 Statistics - One & Two Sample Tests of Hypothesis Need help with 20 questions on One-Sample and Two-Sample Tests of Hypothesis. Please see the answers Answers to multiple choice questions from hypothesis testing are included in the answers

  • Relevance of One-Tailed and Two-Tailed Tests

    147336 Relevance of One-Tailed and Two-Tailed Tests Discuss in one short paragraph the relevance of one-tailed and two-tailed tests with alternate hypothesis.

  • ANOVA: The Meaning of F = 1 and Two Sample T-Tests

    233415 ANOVA: The Meaning of F = 1 and Two Sample T-Tests In ANOVA, what does F=1 mean? What are the differences between a two sample t-test and ANOVA hypothesis testing?

  • Independent Sample/F Distribution/Type I Error

    ANOVA tests equality of means for more than two populations, whereas the two-sample t-test for mean tests for equality of means of only two populations. c.

  • Testing of Hypothesis

    97982 Hypothesis Testing Using the same data set used for you Hypothesis Testing Paper in Week Two, paper describing a new hypothesis test using a different statistic (e.g., large sample size, small sample size, means and/or proportions, one-and two-tailed

  • Analysis of Variance - ANOVA Problem

    (Note that the formulas for computing s, t and/or z in the case of a two-sample test are different than the formulas for computing the same values in a one-sample test. Use Excel data analysis to conduct tests comparing two sample means.)

  • Statistics: Hypothesis Testing and Differentiating Between Samples

    (1) We would use one-sample hypothesis test when we want to test for a population parameter, whereas we use two-sample hypothesis test when we want to compare the two samples that may be drawn from a single or two different populations.

  • Small vs large samples

    This 630 word solution compares hypothesis tests for large and small samples and in particular compares p-values of the tests to evaluate which test is more signficant.

  • Multiple choice questions

    Hypothesis tests can be used to relate to: a. tests of strengths b. tests of association c. tests of differences d. b and c are correct Answer: c. tests of differences 9.

  • Hypothesis Testing, Statistical Inference, and Regression Analysis

    What are the differences between one- and two- sample hypothesis tests? Describe the correct mathematical form for specifying the null and alternative hypotheses for both types of tests.

View More Related Solutions