naguil2500 naguil2500

04-11-2022
Mathematics

Answered

thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 139 millimeters, and a standard deviation of 8 millimeters. if a random sample of 44 steel bolts is selected, what is the probability that the sample mean would be greater than 142.6 millimeters? round your answer to four decimal places.

Answer :

Other Questions

the cost of 5 gallons of ice cream has a variance of 49 with a mean of 30 dollars during the summer. what is the probability that the sample mean would differ f

the mean number of words per minute (wpm) read by sixth graders is 81 with a standard deviation of 17 wpm. if 130 sixth graders are randomly selected, what is t

the scores on a certain test are normally distributed with a mean score of 49 and a standard deviation of 3. what is the probability that a sample of 50 student

for employees at a large company, the mean number of overtime hours worked each week is 9.2 hours with a population standard deviation of 1.6 hours. a random sa

the salaries of the employees of a corporation are normally distributed with a mean of $58,750 and a standard deviation of $4700. show the work to get your answ

for an independent-samples t test where group 1 has 23 participants, a mean of 11.6, and a standard deviation of 3.1, and group 2 has 19 participants, a mean of

a random sample of 64 sat scores of students applying for merit scholarships showed an average of 1200 with a standard deviation of 200. find the t value needed

consider the problem of estimating the mean value of a population, and imagine a large number of hypothetical samples each with size n. the population variance

a rectangular tank that is 1372 ft3 with a square base and open top is to be constructed of sheet steel of a given thickness. find the dimensions of the tank wi

what is the probability that a randomly selected employee will have a salary of at least $62,000? b. what is the probability that a randomly selected employee w