Purchase Solution

Hypothesis test

Not what you're looking for?

Ask Custom Question

Your director has banned the use of all artificial fingernails, claiming their use contributes to patient infections in the unit. After multiple discussions the director has allowed you to do a research study to determine if the use of artificial fingernails causes increases in infection rates. You would really like to prove that their use does not contribute to infection rates. Without worrying about the research design in this case, or even how you might research it, state
1. The null and alternate that you might use.
2. What alpha you might use and why
3. What rejecting the null would mean
4. What failing to reject the null would mean
5. What a type I error is in this case and the consequences of it?
6. What a type II error is in this case and the consequences
7. Which error is more important in this case.

Purchase this Solution

Solution Preview

Your director has banned the use of all artificial fingernails, claiming their use contributes to patient infections in the unit. After multiple discussions the director has allowed you to do a research study to determine if the use of artificial fingernails causes increases in infection rates. You would really like to prove that their use does not contribute to infection rates. Without worrying about the research design in this case, or even how you might research it, state

1. The null and alternate that you might use.
H0: The use or artificial ...

Purchase this Solution


Free BrainMass Quizzes
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.

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

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.