# Question

Precision Doors is an organization that installs new garage doors on residential homes. Suppose the installation time for a residence follows the uniform distribution with a minimum time of 190 minutes and a maximum time of 370 minutes.

a. What is the probability that an installation will require less than 4 hours to complete?

b. What is the probability that an installation will require more than 5 hours to complete?

c. What is the probability that an installation will require between 250 and 350 minutes to complete?

d. Calculate the mean and standard deviation for this distribution.

e. Precision Door has a goal that 80% of the time, the installation time for a residence will be less than 6 hours. Is this goal being achieved?

a. What is the probability that an installation will require less than 4 hours to complete?

b. What is the probability that an installation will require more than 5 hours to complete?

c. What is the probability that an installation will require between 250 and 350 minutes to complete?

d. Calculate the mean and standard deviation for this distribution.

e. Precision Door has a goal that 80% of the time, the installation time for a residence will be less than 6 hours. Is this goal being achieved?

## Answer to relevant Questions

Suppose the time to deliver a pizza after an order for one is placed on a local restaurant’s Web site follows a uniform distribution with a minimum time of 4 minutes and a maximum time of 18 minutes. a. Determine the ...Major League Baseball teams have become concerned about the length of games. During a recent season, games averaged 2 hours and 52 minutes (172 minutes) to complete. Assume the length of games follows the normal distribution ...Researchers at the University of California, San Diego, found that a person in the United States spent an average of 5 hours a day watching TV. Assume the population standard deviation is 1.6 hours per day. A sample of 32 ...One semester I had a total of 80 students in my statistics classes. The average score for the class on the last exam I administered was 85.4 with a standard deviation of 4.9. A random sample of 32 students was selected. a. ...First time buyers are very important to the housing market because these buyers allow existing homeowners to “move up” into their next home. According to the National Association of Realtors, 31% of U. S. homes sold in ...Post your question

0