Business, 30.05.2021 02:40 mpgleboski

Fast Auto Service provides a lubrication service for cars. It is known that the mean time taken for this service is 15 minutes per car and the standard deviation is 2.4 minutes. Assume that the times taken for the service for all cars have a normal distribution If a service time is selected at random, find the
probability that the time is:
(i) more than 18 minutes
(ii) less than 10 minutes
(iii) between 12 and 16 minutes (10 marks)

Answers: 2

Show answers

Another question on Business

Business, 21.06.2019 21:30

Dr. dow jones wants to know whether a problem-based approach to teaching economics will result in higher academic performance than his traditional method. of the six sections of economics 101 at his university, dr. jones randomly assigns three sections to the traditional method and three sections to the problem-based method for unit 1 of the course. then all sections switch the instructional method for unit 2. he plans to compare the performance of the two groups of sections on their unit 1 and unit 2 exams. this study employs a design.

Answers: 3

Answer

Business, 22.06.2019 15:10

You want to have $80,000 in your savings account 11 years from now, and you’re prepared to make equal annual deposits into the account at the end of each year. if the account pays 6.30 percent interest, what amount must you deposit each year? (do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)

Answers: 1

Answer

Business, 22.06.2019 19:00

In north korea, a farmer’s income is the same as a dentist’s income. in a country with a mixed or market economy, the difference between those two professions might be more than 5 times different. how can you explain the fact that individuals doing the same work in different countries do not earn comparable salaries?

Answers: 1

Answer

Business, 22.06.2019 23:30

How does the federal reserve stabilize and safeguard the nation’s economy? (select all that apply.) it distributes currency and oversees fiscal conditions. it implements american monetary policy. it regulates banks and defends consumer credit rights. it regulates and oversees the nasdaq stock exchange.

Answers: 1

Answer

You know the right answer?

Fast Auto Service provides a lubrication service for cars. It is known that the mean time taken for...

Questions