Which number is closest to the value of this expression

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

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