Chapter 6 Estimating the Mean
Like Chapter 5, this chapter focuses more on statistical concepts than on using SAS. It shows how to use PROC MEANS to find a confidence interval for the mean. Confidence intervals are based on statistical concepts that are illustrated with simulated data. This chapter discusses the following major topics:
- estimating the mean with a single number
- exploring the effect of sample size when estimating the mean
- exploring the effect of population variance when estimating the mean
- understanding the distribution of sample averages
- building confidence intervals for the mean
SAS creates confidence intervals for numeric variables only. However, the general statistical concepts discussed in this chapter apply to all types ...
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