Fundamentals of Biostatistics
8th Edition
ISBN: 9781305268920
Author: Bernard Rosner
Publisher: Cengage Learning
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Chapter 6, Problem 77P
The value of mammography as a screening test for breast cancer has been controversial, particularly among young women. A study was recently performed looking at the rate of false positives for repeated screening mammograms among approximately 10,000 women who were members of Harvard Pilgrim Health Care, a large health-maintenance organization in New England [9].
The study reported that of a total of 1996 tests given to 40- to 49-year-old women, 156 yielded false-positive results.
What does a false-positive test result mean, in words, in this context?
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An SMR over 100% ( i.e.,171 %) indicates that the "healthy worker effect"
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Annie is concerned over a report that "a woman over age 40 has a better chance of being killed by a terrorist than of getting married." A study found that the likelihood of
marriage for a never-previously-wed, 40-year-old university-educated American woman was 2.6 % . To demonstrate that this percentage is too small, Annie uses her
resources at the Baltimore Sun to conduct a simple random sample of 540 never-previously-wed, university-educated, American women who were single at the beginning
of their 40s and who are now 45. of these women, 20 report now being married. Does this evidence support Annie's claim, at the 0.10 level of significance, that the
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Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.
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Annie is concerned over a report that "a woman over age 40 has a better chance of being killed by a terrorist than of getting married." A study found that the likelihood of
marriage for a never-previously-wed, 40-year-old university-educated American woman was 2.6 % . To demonstrate that this percentage is too small, Annie uses her
resources at the Baltimore Sun to conduct a simple random sample of 540 never-previously-wed, university-educated, American women who were single at the beginning
of their 40s and who are now 45. Of these women, 20 report now being married. Does this evidence support Annie's claim, at the 0.10 level of significance, that the
chances of getting married for this group is greater than 2.6 % ?
Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below.
Ho :p = 0.026
0.026
d: "H
Answer
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国 Keypad
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O
Chapter 6 Solutions
Fundamentals of Biostatistics
Ch. 6.5 - What is the difference between a standard...Ch. 6.5 - What does a 95% CI mean?Ch. 6 - Suppose we are asked to construct a list of...Ch. 6 - Suppose we are asked to construct a list of...Ch. 6 - Suppose we are asked to construct a list of...Ch. 6 - Suppose we are asked to construct a list of...Ch. 6 - The data in Table 6.10 concern the mean triceps...Ch. 6 - The data in Table 6.10 concern the mean triceps...Ch. 6 - The data in Table 6.10 concern the mean triceps...Ch. 6 - The data in Table 6.10 concern the mean triceps...
Ch. 6 - The data in Table 6.10 concern the mean triceps...Ch. 6 - The data in Table 6.10 concern the mean triceps...Ch. 6 - Refer to the data in Table 2.13. Regard this...Ch. 6 - Refer to the data in Table 2.13. Regard this...Ch. 6 - Refer to the data in Table 2.13. Regard this...Ch. 6 - Refer to the data in Table 2.13. Regard this...Ch. 6 - Refer to the data in Table 2.13. Regard this...Ch. 6 - Refer to the data in Table 2.13. Regard this...Ch. 6 - Refer to the data in Table 2.13. 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