Statistics > QUESTIONS & ANSWERS > Grand Canyon University - HLT 362V HLTV Week 1 Exercise 8 & 27 (All)
Exercise 27 Data was taken from the data table in the textbook and analyzed using SPSS. 1. What is the mean age of the sample data? The mean is 56.5 years. Mean is calculated by adding up all the d... ata, then dividing by the number of data points. Report Age Mean N Std. Deviation 56.50 10 19.260 2. What percentage of patient never used tobacco? 2 out of 10, or 20% of patients never used tobacco. Tobacco Frequency Percent Valid Percent Cumulative Percent Valid F 7 70.0 70.0 70.0 C 1 10.0 10.0 80.0 N 2 20.0 20.0 100.0 Total 10 100.0 100.0 3. What is the standard deviation for age? Using SPSS, the SD is calculated to be 19.26 years. Report Age Mean N Std. Deviation 56.50 10 19.260 4. Are there outliers among the values for age? Provide a rationale for your answer. An outlier would be a subject whose age is abnormally high or low from the mean sample population. Outliers can skew data and make interpretation of results difficult. To find an outlier, you can find the interquartile range of the distribution and an outlier would any age that is 1.5 times outside the interquartile range. In this population, none of the ages are outliers by this definition. [Show More]
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