At december 31, 2019, windsor, inc. company had a credit balance of $18,700 in allowance for doubtful accounts. during 2020, windsor, inc. wrote off accounts totaling $12,200. one of those accounts ($3,400) was later collected. at december 31, 2020, an aging schedule indicated that the balance in allowance for doubtful accounts should be $24,200. prepare journal entries to record the 2020 transactions of windsor, inc. company. (credit account titles are automatically indented when amount is entered. do not indent manually.)

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.