Author Question: The weights of items produced by a company are normally distributed with a mean of 4.5 ounces and a ... (Read 95 times)

kms5229 · **on:** Mar 25, 2023

Question 1

The weekly earnings of bus drivers are normally distributed with a mean of $395. If only 1.1 percent of the bus drivers have a weekly income of more than $429.35, what is the value of the standard deviation of the weekly earnings of the bus drivers?

Question 2

The weights of items produced by a company are normally distributed with a mean of 4.5 ounces and a standard deviation of 0.3 ounces.

a.	What is the probability that a randomly selected item from the production will weigh at least 4.14 ounces?
b.	What percentage of the items weigh between 4.8 to 5.04 ounces?
c.	Determine the minimum weight of the heaviest 5% of all items produced.
d.	If 27,875 of the items of the entire production weigh at least 5.01 ounces, how many items have been produced?

bainer89 · **Reply #1 on:** Mar 25, 2023

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