Purchase Solution

# Test of hypothesis using dependent samples

Not what you're looking for?

A study was done to determine if a new diet plan would decrease weight. A random sample of 14 individuals were weighed before and after the plan with the results listed below: See Data Set for values below.

Using a significance level of 5%, is there evidence that indicates that this diet plan is effective?_________

Before Diet Plan 154 214 157 175 198 245 130 144 214 174 240 198 212 160
After Diet Plan 149 218 154 173 198 240 128 148 212 168 241 195 210 158

a) State the null and alternate hypothesis.
b) Determine the rejection region. For example "if z>=1.645 , then reject H0 ".
c) Determine the Test Statistic.
d) Conclude either "Reject H0 " or "Do not reject H0" based on your analysis and answer the question.
e) Determine the p value of the test.

##### Solution Summary

The hypothesis that the diet plan is effective has been tested.

##### Free BrainMass Quizzes

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.

##### 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.