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Hypothesis Tests Concerning Variances | Finance Train

Hypothesis Testing

13 lessons0%

Lessons

What is Hypothesis Testing

Test Statistic, Type I and type II Errors, and Significance Level

Decision Rule in Hypothesis Testing

p-Value in Hypothesis Testing

Selecting the Appropriate Test Statistic

Hypothesis Testing with t-statistic

Hypothesis Testing with z-statistic

Tests Concerning Differences in Means

Paired Comparision Tests - Mean Differences When Populations are Not Independent

Hypothesis Tests Concerning Variances

Chi-square Test – Test for value of a single population variance

F-test - Test for the Differences Between Two Population Variances

Non-parametric Tests

Quizzes

Lesson 10 of 13

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Paired Comparision Tests - Mean Differences When Populations are Not Independent

Chi-square Test – Test for value of a single population variance

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Hypothesis Tests Concerning Variances

Till now the tests we saw were related to population mean. We can also conduct hypothesis tests concerning the variance of the population.

There are two types of tests:

Tests concerning the value of a single population variance
Tests concerning the differences between two population variances

The hypothesis will be formed as follows:

Where is the population variance and is the hypothesized value of the variance.