Question on five step approach to t test

Reference no: EM13107417

The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart. The mean assembly time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard deviation of the sample was 2.7 minutes. Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?

Experience raising New Jersey Red chickens revealed the mean weight of the chickens at five months is 4.35 pounds. The weights follow the normal distribution. In an effort to increase their weight, a special additive is added to the chicken feed. The subsequent weights of a sample of five-month-old chickens were (in pounds):

4.41 4.37 4.33 4.35 4.30 4.39 4.36 4.38 4.40 4.39

At the .01 level, has the special additive increased the mean weight of the chickens? Estimate the p-value.

Reference no: EM13107417

Questions Cloud

By how much does the rocket clear the top of the wall : A rocket is fired at a speed of 82.0 m/s from ground level, at an angle of 31.0 ° above the horizontal. The rocket is fired toward an 6.95-m high wall, which is located 18.0 m away.

Select and describe a brand name for a new university : Select a brand name for a new university. Describe why you think the name you have chosen is appropriate

What is the atomic radius of each atom : What is the atomic radius of each atom that composes it If the length of a face centered cubic unit cell is 0.200 nm,?

What is the magnitude and sign of the excess charge : Earth has a net charge that produces an electric field of approximately 150 N/C downward at its surface. (a) What is the magnitude and sign of the excess charge, noting the electric field of a conducting sphere is equivalent to a point charge at i..

Question on five step approach to t test : The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart.

What is the electric field near the surface of the ball : A wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite charge on the car. If a car has a 1000 kg mass and the ball is to be able to lift it from a distance of 1.00 m: (a) What minimum ..

What articulated the media budget : What would you do if you were articulated the media budget will be lost as well as the agency that hired you would lose business if the ROI is not greater than $1.

What is the average power delivered to the tissues : A defibrillator consists of a 16.7-µF capacitor that is charged to 9.0 kV. (a) If the capacitor is discharged in 2.0 ms, how much charge passes through the body tissues? C (b) What is the average power delivered to the tissues?

Discuss liability of each party and potential amount : Upon graduation from college, Bob, Carol, Ted, and Alice formed Kotaku, LP, a limited partnership, to distribute video gaming software over the Internet.

User Account

All Pages