# Hypothesis Testing-difference between means

Not what you're looking for?

A study was conducted on the annual incomes of public school teachers in the state of x, in metropolitan area of less than 100,000, and in metropolitan areas having a population of over 500,000. Some sample statistics are:

The group has the following characteristics:

Less than 100K

Population 45

Mean $31,290

Standard Deviation $1,060

More than 500K

Population 60

Mean $31,330

Standard Deviation $1,900

Test the hypothesis that the annual income of teachers in areas of more than 500,000 is significantly more than those in areas of less than 100,000. Use the 5% level of risk.

##### Purchase this Solution

##### Solution Summary

The solution tests the hypothesis that the annual income of teachers in areas of more than 500,000 is significantly more than those in areas of less than 100,000.

##### Solution Preview

A study was conducted on the annual incomes of public school teachers in the state of x,

in metropolitan area of less than 100,000, and in metropolitan areas having a population of over 500,000. Some sample statistics are:

The group has the following characteristics:

Less than 100K

Population 45

Mean $31,290

Standard Deviation $1,060

More than 500K

Population 60

Mean $31,330

Standard Deviation ...

##### 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.

##### 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.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.