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MATH 325 Final Exam-Latest 2016 December
Question
discharges by age.
discharges by third-party payer.
discharges by service.
discharges by sex.
Question 2.2. (TCO 2) You want to graph the number of deaths due to prostate cancer
for the years 1998 to 2002. The best choice is to use a: (Points : 5)
frequency polygon.
histogram.
line graph.
pie chart.
Question 3.3. (TCO 3) There are 40 students in Section I of a medical terminology
class and 20 students in Section II. The mean score on a Midterm Exam for Section I is 60, and the mean score
for Section II is 70. What is the mean score for the two classes combined? (Points : 5)
63.3
65
67
Not enough information provided to answer question
Question 4.4. (TCO 4) If population parameters are known, and the sample is
sufficiently large, which of the following tests would be most appropriate to
test the difference between two population proportions? (Points : 5)
Paired t-test
One-tailed test
T-test for two independent samples
Z-test for two population proportions
bimodal.
abnormal.
positively skewed.
negatively skewed.
Question 6.6. (TCO 6) A normal distribution has a mean of 20 and a standard deviation
of 5. 95% of the
scores fall between: (Points : 5)
15 and 25.
10 and 30.
5 and 35.
Not enough information provided
Question 7.7. (TCO 7) We have drawn a simple random sample of 100 patients who were
discharged from a critical care hospital in January. Of all the
patients discharged during January, 55% were women and 45% were men. To match the
population, our sample should contain: (Points : 5)
45 men and 55 women.
50 men and 50 women.
55 men and 45 women.
The ratio of men to women in the sample size is not
important.
Question 8.8. (TCO 8) In the above problems, the sample size is 100. The number of
degrees of freedom for evaluating the statistical significance of the test
result is: (Points : 5)
99.
98.
97.
Not enough information provided
sign test.
Kruskal-Wallis test.
Mann-Whitney test.
chi-square goodness-of-fit test.
Page 2
Question 1. 1. (TCO 1)
Describe at least two differences between incidence and prevalence rates, in
your own words. (Points : 25)
Spellchecker
Question 2. 2. (TCO 2) The
purpose of a table, chart, or graph is to communicate information to the data
user. In your own
words, what 3–4 questions should be considered to accomplish this objective?
(Points : 25)
Question 3. 3. (TCO 3) Compare
and contrast the following aspects of validity in your own words: content
validity, construct validity, and criterion-related validity. (Points : 25)
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Question 4. 4. (TCO 4) In your
own words, explain the difference between a population parameter and a sample
statistic. (Points : 25)
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Question 5. 5. (TCO 5) In your
own words, compare the normal distribution with the standard normal
distribution and include standard deviation in your answer. (Points : 25)
Question 6. 6. (TCO 6) Compare
and contrast the z-distribution with the t-distribution, in your own words. (Points : 25)
Question 7. 7. (TCO 7) When
conducting ANOVA to compare the means of three groups, under what conditions
would we reject the null hypothesis? What conclusion would be drawn? (Points :
25)
Spellchecker
Question 8. 8. (TCO 8) In your
own words, explain the relationship between the Pearson r and the coefficient
of determination, r2. What methods of display would be best used for display? (Points : 25)
Spellchecker
Question 8.8 (TCO 8)
Question 9. 9. (TCO 9) Explain
the major differences between parametric and nonparametric procedures, in your
own words. (Points : 25)
Spellchecker
Page 2
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