nmdcat.online

Practice Questions

83. A situational public health researcher wants to identify the typical blood glucose level in a diabetic population where values are heavily skewed towards higher numbers. Which measure of central tendency would be most robust to these extreme values?

A. Mean.
B. Median. ✓
C. Mode.
D. Standard deviation.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026

82. A medicinal study claims a drug significantly reduces mortality, but the confidence interval for the risk ratio is very wide and barely excludes 1.0. What critical interpretation should be made?

A. The drug is highly effective.
B. The finding is statistically significant, but the effect estimate is imprecise and less reliable, warranting caution. ✓
C. The study had high precision.
D. The study is invalid.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026

81. A clinical researcher wants to compare the mean pain scores (on a 0-10 scale, assumed interval) of patients before and after a specific intervention. Which technical statistical test is most appropriate?

A. Independent samples t-test.
B. Paired t-test. ✓
C. Chi-square test.
D. One-way ANOVA.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026

80. What technical term describes the difference between the maximum and minimum values in a dataset?

A. Standard deviation.
B. Variance.
C. Range. ✓
D. Interquartile range.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026

79. A critical situational public health report on vaccination rates in different regions shows wide variation. What statistical concept helps to quantify this variation and understand the typical spread around the average?

A. Mean.
B. Median.
C. Standard deviation. ✓
D. Mode.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026

78. A medicinal study is investigating the effect of different drug dosages on a continuous outcome. If the relationship is expected to be linear, what technical regression model would be most appropriate?

A. Logistic regression.
B. Linear regression. ✓
C. Poisson regression.
D. Survival regression.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026

77. In clinical research, the probability of an event occurring (e.g., disease onset) during a specified period is called:

A. Odds.
B. Relative risk.
C. Incidence. ✓
D. Prevalence.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026

76. A technical sample of heights from a normally distributed population has a mean of 170 cm and a standard deviation of 5 cm. What is the z-score for an individual who is 180 cm tall?

A. z=(180?170)/5=2.0. ✓
B. z=180?170=10.
C. z=5/(180?170)=0.5.
D. z=170/5=34.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026

75. A critical situational decision needs to be made about whether to release a new drug to market based on clinical trial results. If the trial had low statistical power, what is the urgency for a biostatistician’s caution?

A. To immediately recommend approval.
B. To caution that a non-significant result might be due to low power (Type II error) rather than true ineffectiveness, necessitating further investigation. ✓
C. To ignore the power and focus on the p-value.
D. To recommend disapproval regardless of findings.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026

74. A medicinal trial finds no statistically significant difference between a new drug and a placebo, but the drug actually has a positive effect. What critical type of error was made?

A. Type I error.
B. Alpha error.
C. Type II error. ✓
D. Sampling error.
Read More Details about this Mcq:
nmdcat.online BS Nursing
Jun 6, 2026
1 ... 280 281 282 283 284 ... 637
Page 282 of 637
Jump to:

🏆 Top Contributors

  • N

    nmdcat.online

    6361 MCQs

  • N

    NMDCAT.ONLINE

    1 MCQ

  • G

    GULABsb

    1 MCQ

Categories

View all →