Question
A company pays its employees an average wage $30an hour with a standard deviation of$6. Assume the wages are approximately normally distributed. i.If a worker
A company pays its employees an average wage $30an hour with a standard deviation of$6. Assume the wages are approximately normally distributed.
i.If a worker is randomly chosen, what is the probability that he/she is paid $20 or less an hour? [2 Marks]
ii.What is the probability that in a random sample of 30 workers,the mean salary is more than $33 per hour? [3 Marks]
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Finite Mathematics
Authors: Margaret L. Lial, Raymond N. Greenwell, Nathan P. Ritchey
10th Edition
0321748999, 9780321748997
