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# Hypothesis testing, type I, and type II errors

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It is claimed that a new treatment for prolonging the life of patients with leukemia is more effective than previous treatments. The null and research or alternative hypotheses for a data set are: Ho: mu < 10.6 years and Ha: mu > 10.6 years (claim).

a. State the research conclusion that was written if Ho was rejected and a Type I error was made.
b. State the research conclusion that was written if Ho was not rejected and a Type II error was made.
c. State the research conclusion that was written if a sample size of 15 with an alpha level of 0.05 has a test value of 2.27?

##### Solution Summary

the following discusses the idea of making type I and type II errors. Additionally, an interpretation of a test statistics from a given sample is provided.

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A. If Ho was rejected, and type 1 error occurred, this would mean that although Ho was rejected, it is in fact true. Mu is indeed less than 10.6 years ...

##### 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.

##### 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.