The Widgets-R-Us Co. produces glass widgets. The plant is designed to produce 60 widgets per hour, and there is one 10-hour shift per working day. However, with scheduled breaks and needed setups talking about 15 minutes each hour, the plant can only effectively produce 45 widgets per hour for the 10 hours. As it happens, the plant produces 300 widgets per day. Answer the following: a. What is the design capacity of the plant in widgets per day?
b. What is the effective capacity of the plant in widgets per day?
c. What is the efficiency ratio of the plant?
d. What is the utilization ratio of the plant?

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.