The diameter of the dot produced by a printer is normally distributed with a mean diameter of 0.002 inch. Suppose that the specifications require the dot diameter to be between 0.0014 and 0.0026 inch. If the probability that a dot meets specifications is to be 0.9973, what standard deviation is needed? Round your answer to 4 decimal places.

The standard deviation is 0.0002 inch

Step-by-step explanation:

The diameter of the dot produced by a printer is normally distributed with a mean diameter of 0.002 inch.

The probability that a dot meets specifications is between 0.0014 and 0.0026 inch is 0.9973

So,P(0.0014<x<0.0026)=0.9973

Formula:

So,

Using Z table

Hence The standard deviation is 0.0002 inch

.mp4 files, because, video

you forgot an image

step-by-step explanation: