Purchase Solution

Test of hypothesis using Chi square

Not what you're looking for?

Ask Custom Question

There are four entrances to the Government Center Building in downtown Philadelphia. The building maintenance supervisor would like to know if the entrances are equally utilized. To investigate, 400 people were observed entering the building. The number using each entrance is reported below. At the .01 significance level, is there a difference in the use of the four entrances?

Entrance Frequency

Main Street 140

Broad Street 120

Cherry Street 90

Walnut Street 50

Total 400

Purchase this Solution

Solution Summary

This solution tests the hypothesis that there is a difference in the use of the four entrances to the Government Center Building in downtown Philadelphia. It lists the frequencies of the entrances, and uses this information to calculate Chi square step-by-step.

Solution Preview

Please see the attached file.

First we calculate the expected frequencies if all the entrances are equally used.

If all the entrances are equally used probability of using any one of the 4 entrances = 1/4 = 0.25

n= 400
If the use of entrances are equal
Entrance proportion Expected frequency
Main Street 0.25 100 =0.25x400
Broad Street 0.25 100 =0.25x400
Cherry Street 0.25 100 ...

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.