Purchase Solution

Test of hypothesis for equality of two proportions

Not what you're looking for?

Ask Custom Question

(see attached)

A sample of 200 observations from the population indicated that X1 is 170. A sample of 150 observations from the second population revealed X2 to be 110. Use the .05 significance level to test the hypothesis.
A. state the decision rule
B. compute the pooled proportion
C. compute the value of the test statistic
D. what is you decision regarding the null hypothesis?

Purchase this Solution

Solution Summary

The solution answers a test of hypothesis on equality of two proportions

Solution Preview

A. state the decision rule

Null Hypothesis: Ho: p1=p2
Alternative Hypothesis: H1: p1 not equal to p2
No of tails= 2 Since it is a two tailed test
significance level= alpha = 5%
or alpha = 0.05 (expressed in decimal number)

Since the sample sizes are large we will use normal distribution and use two tailed test for difference

z critical value for alpha= 0.05 and two tailed ...

Purchase this Solution

Free BrainMass Quizzes
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.

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

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.