Fundamentals of Biostatistics
8th Edition
ISBN: 9781305268920
Author: Bernard Rosner
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 1P
The data in Table 2.13 are a sample from a larger data set collected on people discharged from a selected Pennsylvania hospital as part of a retrospective chart review of antibiotic usage in hospitals [7]. The data are also given in Data Set HOSPITAL.DAT with documentation in HOSPITAL. DOC at www.cengagebrain.com. Each data set at www.cengagebrain.com is available in six formats: ASCII, MINITAB-readable format, Excel-readable format, SAS-readable format, SPSS-readable format, and Stata-readable format, and as a text file (R-readable format).
Compute the mean and
Expert Solution & Answer
To determine
Find the mean for the duration of hospitalization for the 25 patients.
Find the median for the duration of hospitalization for the 25 patients.
Answer to Problem 1P
The mean for the duration of hospitalization for the 25 patients is 8.6 days.
The median for the duration of hospitalization for the 25 patients is 8 days.
Explanation of Solution
Calculation:
Mean and median:
Step by step procedure to obtain mean and median using MINITAB software is given as,
- Choose Stat > Basic Statistics > Display Descriptive Statistics.
- In Variables enter the column Dur_stay.
- Choose option statistics, and select Mean, Median.
- Click OK.
Output using MINITAB software is given below:
Hence, the mean for the duration of hospitalization for the 25 patients is 8.6 days, and the median is 8 days.
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Chapter 2 Solutions
Fundamentals of Biostatistics
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