Purchase Solution

Test of hypothesis using dependent samples

Not what you're looking for?

Ask Custom Question

A group of 10 students was pretested before instruction and posttested 6 weeks of instruction with the following achievement scores:

Student Before After Difference

1 14 17 3
2 12 16 4
3 20 21 1
4 8 10 2
5 11 10 -1
6 15 14 -1
7 17 20 3
8 18 22 4
9 9 14 5
10 7 12 5

Is there evidence of an improvement in achievement over this 6-week period? Justify using an appropriate statistical test.

Purchase this Solution

Solution Summary

Tests differences between means with dependent samples.

Purchase this Solution

Free BrainMass Quizzes
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.

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.