can you help me with the attache problem ,, thank you17.
The Sony Television Manufacturing Division estimates that 43% of their televisions are still in
operation in the United States for over 8 years.
If a random sample of 15 televisions is selected:
a. What is the probability that the number of televisions in the sample that are in operation
for over 8 yrs will be exactly 2?
b. What is the probability that number of televisions in the sample that are in operation for
over 8 yrs will be at most 2?
c. What is the probability that the number of televisions in the sample that are in operation
for over 8 yrs will be 3 or more?
"Quickie Lube" fast oil change company has thousands of franchises all over the United States.
They estimate that the mean time to get an oil change at any of their franchises for any car to be
15.2 minutes with a standard deviation of 2.4 minutes.
They also assume the times of the oil
changes to be normally distributed.
a. What is the probability of randomly selecting a franchise and getting an oil change that
takes more than 18 minutes?
This question was answered on: May 23, 2022
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