Misty mcdougall is the manager of the zachary bagel shop. the corporate office had budgeted her store to sell 2,900 ham sandwiches during the week beginning july 17. each sandwich was expected to contain 7 ounces of ham. during the week of july 17, the store actually sold 3,400 sandwiches and used 24,400 ounces of ham. the standard cost of ham is $0.20 per ounce. the variance report from company headquarters showed an unfavorable materials usage variance of $820. ms. mcdougall thought the variance was too high, but she had no accounting background and did not know how to register a proper objection.

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.