DIRECTIONS:Identify the appropriate hypothesis test for each of the following research situations labeled (a) - (d).Make sure to label your responses clearly!

(a) A researcher wants to determine whether the first-born child would score higher on an English vocabulary test than the last-born child.

(b) A dog daycare worker in New York City ranks a group of dogs on patience and friendliness.

(c) A researcher is interested in measuring the driving distance from campus and the weekly cost of gas for n=15 college students.

(d)A psychologist wishes to examine the relationship between gender (male, female) and confidence levels (low, high) in Los Angeles, California.