2025 NSG 522 Mid-Term Exam New Latest Version
with All Questions from Actual Exam and 100%
Correct Answer
The mean is the number in the middle of the observations, when the observations are arranged
from smallest to largest. ----------- Correct Answer ---------- False
The best way to determine whether data are normally distributed is to
A. Construct a box and whisker plot with turkey fences
B. Construct a histogram
C. Perform a shapiro-wilk test
D. Perform a test for outliers ----------- Correct Answer ---------- C. Perform a shapiro wilk test
A study can only have one dependent variable ----------- Correct Answer ---------- False
Which of the following can be determined from a Spearman correlation coefficient and its
associated with p-value? SELECT ALL THAT APPLY
Statistical significance
Risk of a type 2 error
Strength of the relationship
Direction of the relationship ----------- Correct Answer ---------- Statistical significance
Strength of the relationship
Direction of the relationship
Which of the following are parametric tests? SELECT ALL THAT APPLY
Which of the following can be determined from a Spearman correlation coefficient and its
associated p-value? SELECT ALL THAT APPLY
- statistical significance
- risk of a type 2 error
- strength of the relationship
- direction of the relationship ------------ Correct Answer ----------- - statistical significance
- strength of the relationship
- direction of the relationship
Which of the following are non-parametric tests? SELECT ALL THAT APPLY
A researcher studies the relationship between hours of television watching and BMI. The
correlation coefficient is 0.35. This relationship is:
A. moderate inverse
B. weak positive
C. strong positive
D. moderate positive ------------ Correct Answer ----------- D. moderate positive
Which of the following would be reasons to use a non-parametric test? SELECT ALL THAT
APPLY
- interval data
- Shapiro-Wilk value of 0.010
- presence of one small outlier
- normal distribution
- nominal data ------------ Correct Answer ----------- - Shapiro-Wilk value of 0.010
- presence of one small outlier
- nominal data
Which of the following are nonparametric tests? SELECT ALL THAT APPLY
Chi Square test
Dependent t test
Spearman correlation coefficient
,One-way analysis of variance
Mann-whitney test ----------- Correct Answer ---------- Chi-square test
Spearman correlation coefficient
Mann-Whitney test
A researcher studies the relationship between hours of television watching and BMI. The
correlation coefficient is .35 which indicates
A moderate inverse relationship
A weak positive relationship
A strong positive relationship
A moderate positive relationship ----------- Correct Answer ---------- A moderate positive
relationship
Which of the following would be reasons for using a nonparametric test? SELECT ALL THAT
APPLY
interval level data
Shapiro-wilk test p-value of 0.010
Presence of one small outlier
Normal distribution
Nominal level data ----------- Correct Answer ---------- Shapiro-Wilk test p-value of 0.010
Presence of one small outlier
Nominal level data
Pearson correlation coefficient can be positive or negative ----------- Correct Answer ----------
True
The best test to use when testing for a relationship between 2 dichotomous, independent
variables would be a
McNemar Test
Chi-square test
Independent t-test
Fisher Exact test ----------- Correct Answer ---------- Fisher Exact test
In a box and whisker plot, the length of the box is equal to the
Midrange
Epidemiological range
Statistical range
Interquartile range ----------- Correct Answer ---------- Interquartile range
The mean is the arithmetic average of the observations ----------- Correct Answer ---------- True
What percentage of observations fall within +/- 2 standard deviations of the mean?
The validity of a weight measurement obtained with an electronic scale refers to the repeatability
of the measurement ----------- Correct Answer ---------- False
The quality of life is measure on a scale of 1 (extremely poor quality) to 5 (best possible quality).
The best graphic display of these measurements would be a
Bar chart
Stem and leaf plot
Box and whisker plot
Histogram ----------- Correct Answer ---------- Histogram
What percentage of scores fall between the first and third quartile?
When analyzing the variable gender, which was measured in 5 categories- the data should be
displayed using a
histogram
box and whisker plot
pie chart
bar chart
line chart ----------- Correct Answer ---------- bar chart
a variable was coded as disease present, disease not present, or disease status unknown. When
performing the descriptive statistics, which of the following should be used? SELECT ALL
THAT APPLY
A student conducting a quality improvement project on a unit in the university hospital where the
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