A simple random sample of electronic components will be selected to test for the mean lifetime in hours. Assume that component lifetimes are normally distributed
with population standard deviation of 14 hours. How many components must be
sampled so that a 99% confidence interval will have margin of error of 2 hours?
Write only an integer as your answer.

for the points

step-by-step explanation:

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step-by-step explanation:

123123 step byt step

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

answer:   x*94 +688*6   = 267*100

94x+4128=26700    

94x=22572     /94

x=240.128

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