N580
Standard deviation is a measure of - answer dispersion
Range is defined as the difference between the minimum value and the maximum
value. In reporting range, however, researchers generally report: - answer the actual
minimum and maximum value
Robert reported that the mean O2 saturation of his sample was 95 with a standard
deviation of +/- 2. Assuming the values were relatively normally distributed, this means:
- answerabout 68% of the sat values fall between 93 and 97
Descriptive statistics are used for all of the following except - answer To statistically test
a hypothesis
The standard deviation is easier to interpret as a measure of variability than variance
because: - answerthe standard deviation is in the same unit of measurement as the
variable -- while variance is not reported in the same unit of measurement
Jane administered a visual analogue scale in measuring pain to 100 post-operative
patients. In revieweing her descriptive statistics, she found that the most frequent
scores -- in equal number were 4 and 5 (on an 11 point scale of 0 to 10). This is best
described as: - answerBi-modal
Joe measured depression in 40 patients. Possible scores on the depression scale he
used ranged from 0 (no depression) to 80 (severe clinical depression). For his sample,
the mean score was 26, the mode was 20 and the median was 23. Actual scores
ranged from 4 to 50. If the individual who scored 50 had scored 80, which of the
following measures of central tendancy would change? - answermean
Standard deviation is a measure of - answerdispersion
Nominal data are best presented using the mean and standard deviation. - answerfalse
Chet collected data regarding the wealth (annual income) of people in his community. In
looking at his frequency distribution and descriptive statistics, he found the distribution
was seriously skewed. In reporting his data regarding the communities wealth, most
likely he should: - answerreport the range and median
Standard deviation is a measure of - answer dispersion
Range is defined as the difference between the minimum value and the maximum
value. In reporting range, however, researchers generally report: - answer the actual
minimum and maximum value
Robert reported that the mean O2 saturation of his sample was 95 with a standard
deviation of +/- 2. Assuming the values were relatively normally distributed, this means:
- answerabout 68% of the sat values fall between 93 and 97
Descriptive statistics are used for all of the following except - answer To statistically test
a hypothesis
The standard deviation is easier to interpret as a measure of variability than variance
because: - answerthe standard deviation is in the same unit of measurement as the
variable -- while variance is not reported in the same unit of measurement
Jane administered a visual analogue scale in measuring pain to 100 post-operative
patients. In revieweing her descriptive statistics, she found that the most frequent
scores -- in equal number were 4 and 5 (on an 11 point scale of 0 to 10). This is best
described as: - answerBi-modal
Joe measured depression in 40 patients. Possible scores on the depression scale he
used ranged from 0 (no depression) to 80 (severe clinical depression). For his sample,
the mean score was 26, the mode was 20 and the median was 23. Actual scores
ranged from 4 to 50. If the individual who scored 50 had scored 80, which of the
following measures of central tendancy would change? - answermean
Standard deviation is a measure of - answerdispersion
Nominal data are best presented using the mean and standard deviation. - answerfalse
Chet collected data regarding the wealth (annual income) of people in his community. In
looking at his frequency distribution and descriptive statistics, he found the distribution
was seriously skewed. In reporting his data regarding the communities wealth, most
likely he should: - answerreport the range and median
