Question

Peanut allergies are a serious health concern for many people. Researchers are considering using treatments to desensitize allergy sufferers. Two treatments are tried: 1) a series of injections containing very small amounts of allergens and 2) a skin patch that delivers a consistent small dose. A random sample of peanut allergy sufferers was found, divided into two groups, and the therapies were tried for six months. Finally they exposed patients to a larger dose of allergen in a medical center and saw if they had a reaction. What do we need to use to analyze these data? Question 13 options: 1-variable chi-square test 2-sample t-test correlation analysis linear regression 1-sample z-test 2-sample z-test 1-sample t-test 2-variable chi-square test analysis of variance

Answer 1

we use 2 VARIABLE CHI SQUARE TEST

chi sqaure test is used when

sampling method is simple random sampling

the variables under study are catagorical ( here we see if the patients under two groups had reaction or not )

here two variables are treatment 1 and 2

and we test whether the reaction to larger dose is independent of treatment