Purchase Solution

ANOVA: Different Populations and the Null Hypothesis

Not what you're looking for?

Ask Custom Question

A researcher is comparing samples from 6 different populations. Assume that the conclusion from an ANOVA is that the null hypothesis is rejected, in other words that the 6 population means are not all equal. We should expect that

A) At least 1 of the comparisons of means versus would be significant

B) At least 3 of the comparisons of means versus would be significant

C) All 15 of the comparisons of means versus would be significant

D) At least 6 of the comparisons of means versus would be significant

Purchase this Solution
Solution Summary

The expectations for an ANOVA where the null hypothesis is rejected are discussed.

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.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

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.

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

  • Anova test, Kruskai-Wallis test, t-test, and Wilkoxon Rank Sum

    B) Kruskal Wallis Test Null Hypothesis: All the three sections have the same mean population. Alternate Hypothesis: At least one of the sections has a different mean population. No.

  • Parametric vs. Non-parametric Testing

    Step 4: Reject the null hypothesis if K value is greater than the chi-square critical value. As K=5.085 >Chi-square(0.1,2)=4.6052, We reject the null hypothesis and conclude that atleast one of the three populations is different from others.

  • Hypothesis Testing for Four Population Means with ANOVA Tables

    205980 Hypothesis Testing for Four Population Means with ANOVA Tables 1) Test to see if four population means are the same or different. Assume the populations are normally distributed and have equal variances.

  • Independent Sample/F Distribution/Type I Error

    If the sample F-statistic value is larger than the critical value, then the null hypothesis is rejected and we claim that there exists a significant difference among groups in ANOVA.

  • A fictional statistical representation of school lunch programs

    State the null and alternative hypotheses You must now state the research question in terms of a null hypothesis (we write this as Ho) and in terms of an alternate hypothesis (HA).

  • Missing Values for ANOVA Tables

    a) Find the missing values and complete the ANOVA table. b) Using α = .01, what is your conclusion for the test with the null hypothesis that the means of the 3 populations are all equal. c) Are any of them equal?

  • Statistics

    In both the cases (1) and (2) we should expect that at least two population means are different. That is, at least two of the samples come from different populations. A Complete, Neat and Step-by-step Solution is provided.

  • Testing if four population means are the same or different

    226254 Testing if four population means are the same or different I need help with testing to see if four population means are the same or different. Assume the populations are normally distributed and have equal variances.

  • Applied Statistics for Health care

    Ah yes, the actual method that you could use in this case would be ANOVA. ANOVA performs an analysis of variance on data between populations.

View More Related Solutions