NUR 253 Quiz 3 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Descriptive statistics - CORRECT ANSWER describes, summarizes, and synthesizes
collected data
Inferential statistics - CORRECT ANSWER helps to explain relationships among
phenomenon if interest
Frequencies - CORRECT ANSWER percentage or P
Mean - CORRECT ANSWER mathematical average calculating by adding all values
and then dividing them by the total number of values
Median - CORRECT ANSWER the point at the center of the data
Mode - CORRECT ANSWER the most frequently occurring value in a data set
Amodal - CORRECT ANSWER without a mode
Unimodal - CORRECT ANSWER with one mode
Bimodal - CORRECT ANSWER with two modes
Normal distributions - CORRECT ANSWER symmetrical shapes; represented by the
bell curve
Skewed - CORRECT ANSWER when data is asymmetrical
, Positively skewed - CORRECT ANSWER a distribution patter when the mean is
greater than the median and mode
Negatively skewed - CORRECT ANSWER a distribution pattern when the mean is less
than median and the mode
Homogenous - CORRECT ANSWER elements that share many common
characteristics
Heterogeneous - CORRECT ANSWER the degree to which elements are diverse or not
alike
Precentile - CORRECT ANSWER a measure or a rank; each percentile represents the
percentage of cases that a given value exceeds
Statistical range - CORRECT ANSWER the difference between the maximum and
minimum values in a data set
Standard deviation - CORRECT ANSWER the measure of average deviations of a
value from the mean in a given data set
Z score - CORRECT ANSWER a standard unit used to describe the distance a score is
away from the mean per standard deviation
Confidence intervals - CORRECT ANSWER estimate the degree of confidence one
can have about being correct; reported as p=
Type I error - CORRECT ANSWER the researcher is making false claims about the
hypothesis; null hypothesis should be accepted
Type II error - CORRECT ANSWER the researcher believes he/she was wrong when
they were right; null hypothesis should be rejected
QUESTIONS AND CORRECT ANSWERS
Descriptive statistics - CORRECT ANSWER describes, summarizes, and synthesizes
collected data
Inferential statistics - CORRECT ANSWER helps to explain relationships among
phenomenon if interest
Frequencies - CORRECT ANSWER percentage or P
Mean - CORRECT ANSWER mathematical average calculating by adding all values
and then dividing them by the total number of values
Median - CORRECT ANSWER the point at the center of the data
Mode - CORRECT ANSWER the most frequently occurring value in a data set
Amodal - CORRECT ANSWER without a mode
Unimodal - CORRECT ANSWER with one mode
Bimodal - CORRECT ANSWER with two modes
Normal distributions - CORRECT ANSWER symmetrical shapes; represented by the
bell curve
Skewed - CORRECT ANSWER when data is asymmetrical
, Positively skewed - CORRECT ANSWER a distribution patter when the mean is
greater than the median and mode
Negatively skewed - CORRECT ANSWER a distribution pattern when the mean is less
than median and the mode
Homogenous - CORRECT ANSWER elements that share many common
characteristics
Heterogeneous - CORRECT ANSWER the degree to which elements are diverse or not
alike
Precentile - CORRECT ANSWER a measure or a rank; each percentile represents the
percentage of cases that a given value exceeds
Statistical range - CORRECT ANSWER the difference between the maximum and
minimum values in a data set
Standard deviation - CORRECT ANSWER the measure of average deviations of a
value from the mean in a given data set
Z score - CORRECT ANSWER a standard unit used to describe the distance a score is
away from the mean per standard deviation
Confidence intervals - CORRECT ANSWER estimate the degree of confidence one
can have about being correct; reported as p=
Type I error - CORRECT ANSWER the researcher is making false claims about the
hypothesis; null hypothesis should be accepted
Type II error - CORRECT ANSWER the researcher believes he/she was wrong when
they were right; null hypothesis should be rejected
