Gingivitis is a common and mild form of gum disease (periodo…
Gingivitis is a common and mild form of gum disease (periodontal disease) that causes irritation, redness and swelling (inflammation) of your gingiva, the part of your gum around the base of your teeth. In a sample of 427 people ages 20 to 40, 104 of them had sleep apnea. a. Find a point estimate for the population proportion of those between the ages of 20 and 40 who have gingivitis. b. Construct a 99% confidence interval for the proportion of those between the ages of 20 and 40 who have gingivitis. c. In another study, medical researchers concluded that more than 9% of people between the ages of 20 and 40 have gingivitis.. Based on the confidence interval, does it appear that more than 9% of people between the ages of 20 and 40 have gingivitis? Explain.