Purchase Solution

Hypothesis Testing : Single mean and difference between two means and standard deviations

Not what you're looking for?

Ask Custom Question

Explain the difference between testing a single mean and testing the difference between two means. What two assumptions must be met when one is using z test to test differences between two means? When can the sample standard deviations s 1 and s 2 be used in place of the population standard deviations s 1 and s 2?

Purchase this Solution
Solution Summary

Single mean and difference between two means and standard deviations are discussed. The solution is detailed and well presented.

Purchase this Solution
Free BrainMass Quizzes
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.

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.

View More Free Quizzes
Related BrainMass Solutions

  • Difference Between Testing a Single Mean or Two Means

    236402 Difference Between Testing a Single Mean or Two Means Explain the difference between testing a single mean and testing the difference between two means.

  • Hypothesis Testing - Compute the statistical test using the z

    between two means=1.16 Sample standard deviations are used to approximate population standard deviations Null Hypothesis H0: x1=x2 (Population Means are equal) Alternative hypothesis H1: x2 is not equal to x1 (Population means are not equal

  • Statistical Tests, Hypothesis Testing, p-Values, and Sample

    Explain the difference between testing a single mean and testing the difference between two means. b. What two assumptions must be met when one is using z test to test differences between two means? c.

  • Hypothesis Testing and Confidence Intervals for Means

    Hypothesis tests are performed and interpreted for a single mean value as well as the difference between two mean values in a matched pairs design.

  • Hypothesis Testing, 95% Confidence, Point Estimate

    171703 Hypothesis Testing: P-Values, Point Estimates, and Error 1. Consider the following hypothesis test: Ho:u1-u2 = 0 Ha:u1-u2 does not equal 0 The following results are for two independent samples taken from the two populations.

  • Hypothesis testing problems

    Explain the difference between testing a single mean and testing the difference between two means. b. What two assumptions must be met when one is using z test to test differences between two means? c.

  • Inferring about population Means

    Solution describes the steps in hypothesis testing about population means from two sample statistics. Result are studied with variation in sample means, sample deviation and sample sizes.

  • Statistics - Hypothesis Testing - Anova

    191208 Statistics - Hypothesis Testing - Anova... RES/342 Week Two TWO OR MORE SAMPLE HYPOTHESIS TESTING Introduction Last week, we reviewed the 5-step procedure for performing a simple hypothesis test of a single mean.

  • Hypothesis Testing of Mean..

    (µ1= µ2) The alternative hypothesis is H1: There is significance difference between the two population mean age.

View More Related Solutions