MATH 314 Quiz 16

Given on 2026-10-27

The formula for the confidence intervals that we've been developing is often written as

This reads as, start with your best guess , then add and subtract .

1. This formula creates symmetric confidence intervals about the point . Justify, using keywords from this class, why symmetric confidence intervals are reasonable.

2. Suppose , such that the degrees of freedom for the appropriate distribution is . Provide Python code to calculate the value of in this formul appropriate for a confidence interval.

3. Describe, specifically, what the confidence refers to.