Purchase Solution

5 Step Hypothesis Test

Not what you're looking for?

Ask Custom Question

Test the null hypothesis that a population mean is 50 against the alternate hypothesis that the mean is not 50.

The data is of ratio level.

A sample of 400 showed a sample mean of 51.5 and a sample standard deviation of 10.

Use the full, formal hypothesis testing format.

What "model" should be used and why?

Purchase this Solution

Solution Summary

The solution provides step-by-step method of performing a 5 step hypothesis test. All the steps of hypothesis testing (formulation of null and alternate hypotheses, selection of significance level, choosing the appropriate test-statistic, decision rule, calculation of test-statistic and conclusion) have been explained and the statistical analysis has been shown in details. The calculations have also been shown in Interactive EXCEL sheet for better understanding.

Solution Preview

5-Step Hypothesis Test
Step1: State the Null and Alternate Hypothesis:
Null Hypothesis: The population mean is 50.
H_0: μ=50
Alternate Hypothesis: The population mean is not 50.
H_a: μ≠50
Step2: Formulate an Analysis Plan:
Since the data has been measured in ratio scale and sample size, n > 30, the distribution can be assumed to be a normal ...

Purchase this Solution

Free BrainMass Quizzes
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.

Measures of Central Tendency

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