Programming Assignment 1

CSC 323 Data Analysis and Statistical Software

Due: 4/23/98.

The benchmark link contains benchmark scores for a sample of thirty five workstations from several PC manufacturers. The scores represent the number of Tower of Hanoi moves made by each workstation in 25 microseconds. These data are based on actual benchmark scores from the "Netlib/Performance" database.

1. Write a SAS program to analyze these data. Your program should accomplish the following:
   • Read your data from an external file.
   • Execute the PRINT, MEANS and UNIVARIATE procedures.
   • For PROC PRINT, be sure to use a label for your column heading. Use names that are meaningful. You should generate an appropriate title for your output (see guide 1 and guide 2 for example code).
2. Write a short analysis (no more than one page) of your output. Your analysis should address the following:
   • Assuming that your sample is representative of the population of workstations produced by PC manufacturers, estimate the mean and standard deviation of the population.
   • Is the normality assumption reasonable?. Justify your answer.
   • Based on your estimate of the mean and standard deviation, and assuming normality, estimate the following:
     1. The proportion of workstations in the population that may be considered high performance. (i.e. achieve a benchmark score greater than 150).
     2. The benchmark score that represents the 90th percentile.
   • Examine the data. Determine the proportion in the sample that are high performance workstations. How does this proportion compare to your estimate above?.