Hypothesis testing for difference between means

Related BrainMass Solutions

• Accepting the null hypothesis or failing to reject it

  For instance, if one is comparing two groups for equality of the means, and the data set reviews that there is no significant difference between the two means, this does not imply that there is indeed no difference in the means.

• Hypothesis testing

  The confidence limit for difference between means = 0 (hypothesized difference)+ z * standard error of the difference between two means.

• Hypothesis Testing for difference between means

  15117 Hypothesis Testing for difference between means. The task force claims that the average cost per visit will be significantly less if the suggestion is adopted. At a 0.05 level of significance, test the claim of the task force.

• Comparison of Hypothesis Testing and the Legal System

  In other words, statisticians will always assume that there is no significant difference between groups until hypothesis testing PROVES that there is a difference. This fundamental principle of hypothesis testing is very much like the legal system.

• Explanation of the five-step hypothesis testing model

  For the null hypothesis of no difference between two population means (H0: µ1 = µ2), an alternative hypothesis can be that these population means are not equal (Ha: µ1 ≠ µ2).

• Hypothesis Testing - Compute the statistical test using the z

  Accept the alternative hypothesis that the population means are different. The solution conducts a test of hypothesis of difference between means.

• Experimental Design and Analysis

  The hallmark of hypothesis testing is that each test is based on the testing of the null hypothesis. This is the hypothesis of no difference at all - between the sample and other samples, or between the sample and the population.

• Difference Between Testing a Single Mean or Two Means

  Then, you would use s1 and s2 with the t-test for hypothesis testing. The differences between testing a single mean or testing the difference between two means is examined.

• General Process of Hypothesis Testing for Stats Students

  What is the difference between parametric and nonparametric hypothesis testing? I'm looking for 3-4 paragraphs explaining these questions. If you can include one or two cited references, that would be helpful for understanding.

• Multiple choice questions on Test of hypothesis

  What it should have been Two tailed test for difference between means (small sample size) Null Hypothesis: Ho: μ1=μ2 There is no difference between the means;