Chapter 7 Inference for numerical data¶
Chapter 5 introduced a framework for statistical inference based on confidence intervals and hypothesis tests. Chapter 6 summarized inference procedures for categorical data (counts and proportions), using the normal distribution and the chi-square distribution. In this chapter, we focus on inference procedures for numerical data and we encounter a new distribution. In each case, the inference ideas remain the same:
Determine which point estimate or test statistic is useful.
Identify an appropriate distribution for the point estimate or test statistic.
Apply the ideas from Chapter 5 using the distribution from step 2.