The following table shows the heights (in inches) of individuals recorded recently for two families, the Williamses and the Thomases, in Chicago, Illinois: 
a. Construct a 95% interval estimate of the ratio of the population variances.
B) Using the computed confidence interval, test if the ratio of the population variances differs from one at the 5% significance level. Explain.
Definitions:
Species
A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding, and are classified under a common and distinct category in biology.
Concrete
Pertaining to actual things or instances, rather than abstract qualities, ideas, or theories.
Visible Object
An entity or item that can be seen or perceived visually by the human eye.
Touchable Object
An object that can be perceived or interacted with through the sense of touch.
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