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BST322 Final 2023 /Questions With Verified Answers Rated (A+)
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BST322 Final 2023 /Questions With VerifiedAnswers Rated (A+)
Quiz :This is used when a conservative approach is desired and an expected
cell frequency is less than 5 in a 2X2 table. - √Answer :Fisher's exact test
Quiz :It is important to assess the magnitude or strength of a relationship
because this assists you with deciding whether or not a variable A causes
variable B.
True or False - √Answer :False
Quiz :A Z score of +/-1.96 is equivalent to these values on a normal
distribution. - √Answer :+/-2 standard deviations
Quiz :When examining the relationship between two interval or ration level
variables, you can use a scatterplot to allow you to visualize the relationship
between the two.
True or False - √Answer :True
Quiz :This term refers to how data spreads out or disperses within a
distribution. - √Answer :Variability
Quiz :A perfect negative relationship between two variables is expressed as
r=0.
True or False - √Answer :False
Quiz :The arithmetic average of the data is called the: - √Answer :Mean
Quiz :Public Health nurses want to compare the mean weight of US 6th graders
to a sample of 6th graders in one school. Which statistical test is most
appropriate - √Answer :One sample t-test
Quiz :Psych nurses wanted to evaluate the effect of three different treatments
for anxiety - positive imagery, therapeutic touch, and medication on anxiety
score (interval data) while controlling for the effect of length of stay. Which
test is most appropriate? - √Answer :ANCOVA
Quiz :Data which uses numbers to provide categories or labels as well as the
ordering of the categories are: - √Answer :Ordinal
, Quiz :When examining the relationship between a nominal variable and an
interval or ratio variable, you would create a table using the nominal variables,
calculate the mode and median of the interval or ratio variable, then make a
decision regarding the relationship using the mode and median.
True or False - √Answer :False
Quiz :Chi-square tests can be conducted for a 4X3 contingency table.
True or False - √Answer :True
Quiz :Generally, an ANOVA test is used when 3 or more variables are
compared.
True or False - √Answer :False
Quiz :In a negative relationship, as the score of one variable decreases, the
score on the second variable decreases.
True or False - √Answer :False
Quiz :This is the measurement of dispersion equal to the square root of the
mathematical variance. - √Answer :Standard deviation
Quiz :A formal statement that there is an absence of relationship between
variables when tested by a researcher is called: - √Answer :Null Hypothesis
Quiz :The area of the theoretical distribution where the researcher will reject
the null hypothesis is called: - √Answer :Critical region
Quiz :Bivariate statistics refers to the statistical analysis of the relationship
between two variables.
True or False - √Answer :True
Quiz :The difference between the highest and lowest score in a distribution is
called: - √Answer :Range
Quiz :A significant finding with the 2 sample t-test indicates a strong
relationship exists between the 2 population means.
True or False - √Answer :False
Quiz :Relevant data that are expressed in numerical form are called: -
√Answer :Quantitative data
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