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2 pages/≈550 words
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2 Sources
Level:
APA
Subject:
Health, Medicine, Nursing
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Essay
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English (U.S.)
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Topic:

Briefly Describe the Procedure for Testing Hypotheses (Essay Sample)

Instructions:

A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective?
Cholesterol Decreased
No Cholesterol Decrease
Total
Treatment
38
18
56
No treatment
30
28
58
Total
68
46
114
Case Assignment
1. Briefly describe the procedure for testing hypotheses.
2. Formulate the null and alternative hypotheses.
3. Determine the test statistic that you will use.
4. Calculate the p-value. Show your work.
5. Discuss whether there is enough evidence to reject the null hypothesis.

source..
Content:

MODULE 5 CASE: Hypothesis Testing
Name
Course
Instructor
Date
Briefly describe the procedure for testing hypotheses
Hypothesis testing seeks to establish whether the prediction made on the relationship variables is correct (Lehmann & Romano, 2005). In testing hypotheses, one makes assumptions about the study population and then identifies the null hypotheses. The type of data then determines the test statistic to be used based on the sampling distribution and the level of significance. The test statistic is then calculated, with decisions made after interpreting the results. In determining whether the results are significant the p-value is calculated and depends on the test statistics used (Lehmann & Romano, 2005). The research hypothesis focuses on the relationship between two or more variables, and it is stated using the population parameters, with the sample statistics then used to estimate the population parameters. The null hypothesis states that no relationship exists between the variables or specified variables, and the alpha is set to determine whether to accept or reject the bull hypothesis. The test statistics selected will depend on the sampling distribution, while the results are interpreted to accept or disapprove the hypothesis.
Formulate the null a...
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