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Some companies "grade on a bell curve" to compare the performance of their managers. This forces the use of some low performance ratings, so that not all managers are graded "above average." A company decides to give A's to the managers and professional workers who score in the top 15% on their performance reviews, C's to those who score in the bottom 15%, and B's to the rest. Suppose that a company's performance scores are Normally distributed. This year, managers with scores less than 25 received C's and those with scores above 475 received A's. What are the mean and standard deviation of the scores?
Mean 52 and standard deviation 7; N(52, 7). According to the 68-95-99.7 rule, what percentage of jazz CDs play between 38 and 59 minutes?
How did Egypt's physical location along the Nile River affect the culture's political system,religion, and art? Explore at least three examples.
Technology, globalization, an emphasis on teams and a new generation of young people entering the workforce has dramatically altered many workplaces.
Online clothing purchases. An online clothing retailer examined their transactional database to see if total yearly Purchases ($) were related to customers' Incomes ($). (You may assume that the assumptions and conditions for re- gression are met.)
If she actually has 55% of the total vote, what is the probability of getting a sample proportion this small or smaller? Do you think she actually has 55% of the vote? Why or why not?
Find the median amount of time you would have to wait for the 10th email to appear.
You are a young member of the Ashanti Tribe in West Africa in the late 1730s. You end up being owned by a South Carolina "planter" who has a rice plantation.
Indicate at which point flat-of-the-curve medicine is experienced in the following example (imagine that antibiotics have been prescribed for a given population of 1,000 elderly persons).
Name an application for the use of ANOVA. This can be in a professional setting, hobby, or something you find on the internet. What are some business situations where ANOVA would be more appropriate than a Z or T test?
Marketing meow Chow offers a free coin in each bag of cat food. If each 10,000-bag shipment has one gold coin, 2 silver dollars, 5 quarters, 20 dimes.
A population is normally distributed, with a mean of 23.45 and a standard deviation of 3.8. What is the probability of each of the following?
in a random sample of 5 parts on an assembly line the probability that one of the parts is defect is 15 and follows a
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