Fundamentals of Biostatistics
Fundamentals of Biostatistics
8th Edition
ISBN: 9781305268920
Author: Bernard Rosner
Publisher: Cengage Learning
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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 median for the duration of hospitalization for the 25 patients.

Expert Solution & Answer
Check Mark
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:

Fundamentals of Biostatistics, Chapter 2, Problem 1P

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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