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Practice Questions

93. In a clinical study, researchers are interested in the association between a patient’s BMI (continuous) and their risk of developing Type 2 Diabetes (binary). Which technical regression model is most appropriate?

A. Linear regression.
B. Logistic regression. ✓
C. Poisson regression.
D. Cox regression.
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Jun 6, 2026

92. What technical theorem states that as the sample size increases, the sampling distribution of the sample mean approaches a normal distribution, regardless of the shape of the population distribution?

A. Law of Large Numbers.
B. Bayes' Theorem.
C. Central Limit Theorem. ✓
D. Chebyshev's Theorem.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

91. A situational survey collected data on patient’s age (in years). What technical type of data is age?

A. Nominal.
B. Ordinal.
C. Interval.
D. Ratio. ✓
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

90. A medicinal researcher calculates a p-value of 0.04 and concludes that a new drug is effective. However, unknown to them, the drug truly has no effect. What critical type of error was made?

A. Type II error.
B. Beta error.
C. Type I error. ✓
D. Power error.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

89. A clinical study is designed to compare the mean blood pressure before and after a dietary intervention in the same group of patients. What technical type of t-test is appropriate?

A. Independent samples t-test.
B. Paired t-test. ✓
C. One-sample t-test.
D. Two-sample z-test.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

88. What technical term describes the field that applies statistical methods to problems in biology, public health, and medicine?

A. Statistics.
B. Mathematics.
C. Biostatistics. ✓
D. Epidemiology.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

87. A critical situational report shows a sudden increase in adverse drug reactions in a specific patient population, and the data suggests a potential issue with a newly released drug batch. What is the urgency for a biostatistician’s involvement?

A. To immediately declare the drug unsafe.
B. To rapidly analyze the data for patterns and statistical significance, to inform immediate public health action. ✓
C. To wait for more data to accumulate.
D. To disregard the reports as anecdotal.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

86. A medicinal study aims to determine the effect of a drug on a count outcome (e.g., number of seizures). Which technical regression model is often used for count data?

A. Linear regression.
B. Logistic regression.
C. Poisson regression. ✓
D. Survival regression.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

85. In a clinical trial, researchers are comparing the proportion of patients who achieve remission (yes/no) in two treatment groups. Which technical hypothesis test is most appropriate?

A. Independent samples t-test.
B. Paired t-test.
C. Chi-square test of independence. ✓
D. One-way ANOVA.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026

84. The strength and direction of a linear relationship between two continuous variables is quantified by the:

A. P-value.
B. Correlation coefficient. ✓
C. T-statistic.
D. Chi-square statistic.
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mintcream-chough-797767.hostingersite.com BS Nursing
Jun 6, 2026
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