assignment for measures of central tendency

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Assignment # 3
NURS/HSCI 597
Name:
1. Hand Calculations:
The following 10 values are diastolic blood pressure readings. Compute the
mean, the range, sum of squares (SS), variance (S2), and standard deviation
(S). Use both defining and calculating formulas for SS, S2, and S.
120
100
140
110
160
110
140
130
150
130
2. Using SPSS
a. Perform descriptive statistics and report the following statistics:
mean, the range, sum, variance (S2), and standard deviation (S).
b. Attach SPSS output to your assignment and describe different
components of the output.
c. Make a histogram of the above diastolic blood pressure readings,
superimpose the normal distribution on the histogram. Is the
distribution normal?
d. For each blood pressure value, compute a Z-score.
3. Use the gss.sav file (Refer to the data set on the CD -ROM that came with
your SPSS textbook) to answer questions 4 and 5 on page 97 of your book
“SPSS 14.0 Guide to Data Analysis”
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