Blog

A company gives every applicant the same timed technical test. Pass rates differ sharply across groups. A manager says, “It is fair because everyone took the same test.” What is the best response?

Choose only ONE of the two following questions to respond. 

A manager wants to post a new analyst job immediately because dashboards are delayed. The delays came from a 10-week demand spike and a new tool current employees barely know. What should the manager do first?

The patient’s symptoms are most consistent with inflammation of which structure?

A manager wants a week-one onboarding question that points to a concrete fix, not just a mood rating. Which question best fits?

We define random variable X to be the number of parts that arrive at an environmental testing station in a 1-hour period.   Historical data shows that the mean number of these parts that arrive in a 1-hour period is equal to 29 and X is a Poisson random variable.  This copywritten question is part of a quiz or exam at Arizona State University. It may not be reproduced or posted without the permission of Dr. Linda Chattin The probability that 20 or fewer of these parts arrive in a 30-minute period is _______.  Express your answer to four decimal places.   You must do this problem using one of these online calculators: ti84calc.com ti84calculator.io You will not receive any credit for this question if you do not use the online calculator, even if you get it right.  

The time it takes until the arrival of a bus to a bus stop in minutes has the following CDF:        F(x) = 1 –  e-[l]x  for x > 0 minutes This copywritten question is part of a quiz or exam at Arizona State University. It may not be reproduced or posted without the permission of Dr. Linda Chattin. The expected value of the time until the arrival of a bus is _______ minutes. Express your answer to four decimal places.    You must do this problem using one of these online calculators: ti84calc.com ti84calculator.io You will not receive any credit for this question if you do not use the online calculator, even if you get it right.

The time until the first arrival of a customer to Piggly Wiggly Market after it opens can be modeled as an exponential random variable with a mean equal to 3.4 minutes.  The store opens at 8 am.  This copywritten question is part of a quiz or exam at Arizona State University. It may not be reproduced or posted without the permission of Dr. Linda Chattin.   Determine the probability that the first customer arrival occurs after 8:0[x] am.   Express your answer to four decimal places.   You must do this problem using one of these online calculators: ti84calc.com ti84calculator.io You will not receive any credit for this question if you do not use the online calculator, even if you get it right.

An assembly consists of two mechanical components. Suppose that the probabilities that the first and second components meet specifications are [p] and [q], respectively. This copywritten question is part of a quiz or exam at Arizona State University. It may not be reproduced or posted without the permission of Dr. Linda Chattin.   Assume that the components are independent. What is the probability that one or fewer of the components meets specifications?  Express your answer to four decimal places.   You must do this problem using one of these online calculators: ti84calc.com ti84calculator.io You will not receive any credit for this question if you do not use the online calculator, even if you get it right.

Section 4 – Essay – Choose ONLY ONE of the essay questions below. (15 points)