# Question

A furniture manufacturer has found that the time spent by workers assembling a particular table follows a normal distribution with a mean of 150 minutes and a standard deviation of 40 minutes.

a. The probability is 0.9 that a randomly chosen table requires more than how many minutes to assemble?

b. The probability is 0.8 that a randomly chosen table can be assembled in fewer than how many minutes?

c. Two tables are chosen at random. What is the probability that at least one of them requires at least 2 hours to assemble?

a. The probability is 0.9 that a randomly chosen table requires more than how many minutes to assemble?

b. The probability is 0.8 that a randomly chosen table can be assembled in fewer than how many minutes?

c. Two tables are chosen at random. What is the probability that at least one of them requires at least 2 hours to assemble?

## Answer to relevant Questions

A company services copiers. A review of its records shows that the time taken for a service call can be represented by a normal random variable with a mean of 75 minutes and a standard deviation of 20 minutes. a. What ...Given a random sample size of n = 1, 600 from a binomial probability distribution with P = 0.40, do the following: a. Find the probability that the number of successes is greater than 1,650. b. Find the probability that the ...A hospital finds that 25% of its accounts are at least 1 month in arrears. A random sample of 450 accounts was taken. a. What is the probability that fewer than 100 accounts in the sample were at least 1 month in arrears? b. ...Given an arrival process with l = 3.0, what is the probability that an arrival occurs in the first t = 2 time units? A random variable X is normally distributed with a mean of 500 and a variance of 100 and a random variable Y is normally distributed with a mean of 200 and a variance of 400. The random variables have a correlation ...Post your question

0