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Assume you are a manager for the Bureau of Human Services. As a manager, you feel one of your employees named Michael has not performed up to standards on a particular task of processing case records, a crucial part of the job. At the Bureau, the number of complaints processed by employees is normally distributed, with a mean of 67 forms per employee per day, and a standard deviation of 7. You calculated that this particular employee's average rate is 50 forms per day.
Answer the following questions AND show your answer on the drawing of a normal distribution
a) What percentage of employees at the Bureau process fewer forms than Michael?b) What percentage of employees at the Bureau process more forms than Michael?c) Please example if your concern seems justified?
The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month (The Wall Street Journal, February 25, 2003).
The pooled variance of two samples is:
Test the manager's suspicion at the 5% level of significance. Find the P-value or an interval containing the P-value for the sample test statistic.
A machine has three components working independently. The probability that Component A fails is 0.1, the probability that component B fails is 0.2, and the probability that component C fails is 0.3.
The sample mean, the sample proportion and the sample standard deviation are all unbiased estimators of the corresponding population parameters. True or false (please provide a solution or explanation).
Cards are drawn one by one from a standard deck of 52 cards. Let X be the number of draws up to and including when the first diamond is drawn. If the cards are replaced in the deck, determine E(X). If the cards are not replaced in the deck, determ..
A reporter took a simple random sample of 725 voters in a region that has a population of 12,457. He recorded that 338 of the persons polled favored Issue 1 on the ballot.
Ski Resorts of Vermont, Inc. is considering a merger with Gulf Shores, Inc. of Alabama. The board of directors surveyed 50 stockholders concerning their position on the merger.
If the standard deviation is 4.09, how large a sample is needed to get the desired information to be accurate within 0.53 decibels? Show all work.
Final scores averaged 66 for the treatment group; the SD was 21. For the control group, the figures were 59 and 20. What do you conclude?
Likert scale- based questionnaire & responses for 30 respondents showing the number of respondents for each respond option
Using the finite population correction factor, compute the standard error for each of the three firms given a sample of size 50.
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