Wiring Packages, continued Refer to Exercise 7.75. Suppose the company employs 10 assemblers of wiring packages
a. Find the mean and standard deviation of the company’s daily (8-hour day) production of wiring packages.
b. What is the probability that the company’s daily production is less than 1280 wiring packages per day?
Reference:
Wiring Packages The number of wiring packages that can be assembled by a company’s employees has a normal distribution, with a mean equal to 16.4 per hour and a standard deviation of 1.3 per hour.
a. What are the mean and standard deviation of the number x of packages produced per worker in an 8-hour day?
b. Do you expect the probability distribution for x to be mound-shaped and approximately normal? Explain.
c. What is the probability that a worker will produce at least 135 packages per 8-hour day?
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