Use McNemar S Test to Compare Two Proportions from Matched $A$

question 89

Short Answer

Use McNemar s Test to Compare Two Proportions from Matched -pairs Data
-A researcher wants to determine whether there is a difference between two sunscreen lotions. Participants in a marathon race on a hot, sunny day applied lotion $A$ to one arm and lotion $B$ to the other arm. The results are shown in the table.


Is there a difference in the effectiveness of the two lotions in preventing sunburn? Use the critical-value method and the $\alpha = 0.05$ level of significance.

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Definitions:

Redundant

Something that is no longer needed or useful, often because it duplicates something else.

Due to the Fact That

A phrase used to introduce a reason or explanation for something, equivalent to "because."

Surface Anatomy

The study and description of the visible features of the body without cutting into it.

Bony Features

Characteristics or notable aspects of bones, including their structure, function, and the landmarks they present.