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The management of ABC 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 a 0.05 level of significance, can we conclude that the assembly time using the new method is faster?
If Barry purchases a 2,000 Roth IRA when he is 25 years old and expects to earn an average of 6% per year compounded annually over 35 years( until he is 60), how much will accumulate in the investment?
the number 110 is registered in a fixed 6 bit-register with all bits used for the fractional part. the difference is
A trough is 4 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of from to . The trough is full of water. Find the amount of work in foot-pounds required to empty the trough by pumping ..
an architect has allocated a rectangular space of 416 ft^2 for a square dining room and a 10 ft wide kitchen. find both the width of the square dining room and the length of the entire rectangular space?
Determine the value of c that makes the function f(x,y)=c(x+y) a joint probability mass function over nine points with x=1,2,3 and y=1,2,3
A printer has a contract to print 100,000 invitations for a political candidate. He can run the invitations by using any number of metal printing plates from 1 to 20 on his press.
what is the average cost per unite to produce 100 units?
Boris races his bicycle for 264 feet . A wheel of his bicycle turns 44 times as the bicycle travels this distance. What is the diameter of the wheel?
Four positive numbers, each less than 80, are rounded to the first decimal place and then multiplied together. Use differentials to estimate the maximum possible error in the computed product that might result from the rounding.
The angle of elevation of the sun is decreasing at a rate of 0.25 rad/h. How fast is the shadow cast by a 400-meter-tall building increasing when the angle of elevation of the sun is pi/6?
An archacilogist find s pottery in a Middle Eastern cave which contains only 30% as much carbon14 as a piece of modern pottery. how old is the pottery in the cave? (The half life of fear on 14 is 5730 years)
At a=0.05 does it appear that the average is lower than what was stated by the Tennis Industry Association? Use the P-Value method, and assume that the variable is approximately normally distributed.
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