The effect of X. In given Example, suppose that your product provided better UVA and UVB protection for 15 of the 20 subjects. Perform the significance test using these results and summarize the results.
Example
Comparing two sunblock lotions. Your company produces a sunblock lotion designed to protect the skin from exposure to both UVA and UVB radiation from the sun. You hire a testing firm to compare your product with the product sold by your major competitor. The testing firm exposes skin on the backs of a sample of 20 people to UVA and UVB rays and measures the protection provided by each product.
For 13 of the subjects, your product provided better protection, while for the other 7 subjects, your competitor's product provided better protection.