What percentage of terminals will be replaced

Reference no: EM13154687

The life expectancy of computer terminals is normally distributed with a mean of 4 years and a standard deviation of 0.5 year (or 6 months).

a. What percentage of terminals will last less than 4 years?
b. What is the probability that a randomly selected terminal will last more than 5 years?
c. What percentage of terminals will last between 3 and 4.5 years?
d. If the manufacturer guarantees the terminals for 3 years (and will replace them if they malfunction), what percentage of terminals will be replaced?

Reference no: EM13154687

Questions Cloud

What accounts are permanent and temporary : The company's Land account had a $5,000 balance. Dividends amounted to $300. There was $1,000 of common stock issued. What accounts are permanent and which ones are temporary?

Fundamentals of overhead variances : Calculate the proper fixed-overhead rate per standard direct-labor hour and per unit. Assume that 6,000 standard direct-labor hours are allowed for the output achieved during a given month. Actual variable overhead of $31,000 was incurred; actual ..

Discuss use sources from the itt tech virtual library ad : Review the discussion in the lesson regarding the financial crisis. Discuss each of the following points. Use sources from the ITT Tech Virtual Library to add to your answer.

Well-designed sample of at least 30 units : Select a well-designed sample of at least 30 units. (Describe the population to be studied and the sampling frame). Two variables should be measured with a potential for correlation; if you measure more than two variables, you must correlate two at a..

What percentage of terminals will be replaced : If the manufacturer guarantees the terminals for 3 years (and will replace them if they malfunction), what percentage of terminals will be replaced?

Evaluate the following statements concerning variance analys : Evaluate the following statements concerning variance analysis.

What could firm a do to make its threat credible : What could firm A do to make its threat credible without building excess capacity? Will firm A use the low price as a threat if firm B enters?

Define cost per equivalent unit for conversion costs : There were 20,000 units in the ending work in process inventory of the Welding Department that were 90% complete with respect to conversion costs. A total of $585,900 in conversion costs were incurred in the department during the month. What would..

How much owners equity increased for the month : a) Describe each transaction that ocurred for the month. b) Determinate how much owner's equity increased for the month. c) Compute the amount of net income for the month.

User Account

All Pages