Difference in the mean number

Reference no: EM1313292

Fry Brothers Heating and Air Conditioning, Inc. employ Larry Clark and George Murnen to make service calls to repair furnaces and air conditioning units in homes. Tom Fry, the owner, would like to know whether there is a difference in the mean number of service calls they make per day. A random sample of 40 days last year showed that Larry Clark made an average of 4.77 calls per day, with a standard deviation of 1.05 calls per day. For a sample of 50 days George Murnen made an average of 5.02 calls per day, with a standard deviation of 1.23 calls per day. At the .05 significance level, is there a difference in the mean number of calls per day between the two employees? What is thep-value?

Reference no: EM1313292

Questions Cloud

Discuss the capital budgeting : Discuss the Capital budgeting and what is the net present value of the costs of buying and operating the ambulance over its lifetime

Marginal cost of one of the newspapers : Illustrate what is the marginal cost of one of the 50 newspapers folded also bagged by the fourth student.

What is the friction force that acts on the bear : A small, 300 g cart is moving at 1.60 m/s on an air track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s.

Finding mean-variance by creating probability distribution : Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance and (d) standard deviation of probability distribution and (e) interpret results in context of real life situation.

Difference in the mean number : At the .05 significance level, is there a difference in the mean number of calls per day between the two employees?

Should country record on the bond retirement : Computation of loss and gain on retirement of bonds - Country reacquired all of these bonds at 96 on June 30, 2007, and retired them. Ignoring income taxes, how much gain/loss should country record on the bond retirement?

Application of heckscher : Which country is capital abundant according to the Heckscher-Ohlin theorem? Given your answer to (a), draw the PPF for Canada. Also draw the indifference curve and the relative price line for the no-trade equilibrium.

When the economy is at the point of full employment : When the Economy is at the point of Full Employment, is the Unemployment Rate zero percent.

Explain the term capital budgeting : Explain the term Capital budgeting in concern to Ettenheim Village is considering building a town swimming pool

User Account

All Pages