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Unformatted text preview: for patients (ages 17 and younger) diagnosed with pneumonia, should you use a ztest or a t-test? Are the samples independent or dependent? Do you need to know what each populations distribution is? Do you need to know anything about the population variances? 3. Testing a Mean Test the claim that there is a difference in the mean length of hospital stays for patients (ages 17 and younger) diagnosed with pneumonia.Assume the populations are normal and the population variances are not equal. Use = 0.05. Write a paragraph that interprets the tests decision. Does the decision support your departments claim?...
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This note was uploaded on 03/08/2012 for the course STA 2023 taught by Professor Bagwhandee during the Fall '07 term at University of Central Florida.
- Fall '07