Fundamentals of Biostatistics
8th Edition
ISBN: 9781305268920
Author: Bernard Rosner
Publisher: Cengage Learning
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Textbook Question
Chapter 6, Problem 108P
A radiologist investigates whether a new (less costly) method for identifying esophageal cancer is as effective as the gold standard.
He obtains the following test results: false positive = 0, true positive = 46, false negative = 1, true negative =17.
What is the sensitivity of the test?
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A recent study examined the drinking behaviors of undergraduate college students (male and female freshmen). Each participant was asked how many alcoholic beverages they consumed during the past 7 days. The researchers wish to determine if there is a difference in the drinking habits of males and females in this age group.
Female
Male
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5
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Which type of test will you run?
What it the IV?
What is the DV?
What are the statistical hypotheses (Null and Alternative)?
What is the t-obtained value?
Make a decision about the null hypothesis (reject the Ho or Fail to reject the Ho).
Based on the interpretation of the results, what can you say about sex and drinking habits?
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A diet center wanted to test three different methods for losing weight to determine if the average weight loss (reported in pounds/week) for each method is the same. The results for the three methods are tabulated below. Given that there is a significant difference between the three methods, use the Tukey test to determine if there is a significant difference between each pair of methods. Let a=0.05. (picture attached)
Chapter 6 Solutions
Fundamentals of Biostatistics
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