BST 322 Final Exam Graded A
/. 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
/.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
/.A Z score of +/-1.96 is equivalent to these values on a normal distribution. - Answer-
✅+/-2 standard deviations
/.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
/.This term refers to how data spreads out or disperses within a distribution. - Answer-
✅Variability
/.A perfect negative relationship between two variables is expressed as r=0.
True or False - Answer-✅False
/.The arithmetic average of the data is called the: - Answer-✅Mean
/.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
/.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
/.Data which uses numbers to provide categories or labels as well as the ordering of the
categories are: - Answer-✅Ordinal
/.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
/. 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
/.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
/.A Z score of +/-1.96 is equivalent to these values on a normal distribution. - Answer-
✅+/-2 standard deviations
/.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
/.This term refers to how data spreads out or disperses within a distribution. - Answer-
✅Variability
/.A perfect negative relationship between two variables is expressed as r=0.
True or False - Answer-✅False
/.The arithmetic average of the data is called the: - Answer-✅Mean
/.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
/.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
/.Data which uses numbers to provide categories or labels as well as the ordering of the
categories are: - Answer-✅Ordinal
/.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
