Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 140140 millimeters, and a standard deviation of 88 millimeters. if a random sample of 4949 steel bolts is selected, what is the probability that the sample mean would be greater than 141.4141.4 millimeters? round your answer to four decimal places.

To solve this, we need to use the z test. The formula for z score is:

z = (x – u) / s

where x is sample value = 141.4 mm and above, u is mean value = 140 mm, s is standard dev = 8 mm.

z = (141.4 – 140) / 8

z = 0.175

From the standard probability tables, the p value at z = 0.175 using right tailed test is:

P = 0.4306

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

answer: -8.2562234e+13