Aradio advertisement features a female buyer who is very enthusiastic about the pricing policies of the kia automobile dealers. in the testimonial-type advertisement, the car buyer laments about the difficulty she experienced with other car dealers in haggling over a final price for a car. in comparison, the buyer touts the ease with which she arrived at a final price for her new kia soul automobile—she simply entered the showroom, asked for the price of the car she preferred, and the salesperson quoted her the "no haggle" selling price. no matter which kia dealer she visited, the buyer (or any other buyer, for that matter) would be quoted the same price for the same automobile. the advertisement represents kia's policy.

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups. b. we cannot infer anything from these data since the distribution of salaries is likely right skewed. c. you cannot draw any valid conclusions because the sample sizes are different. d. more students should complete internships because having an internship produces a higher salary.