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The average cost of a gallon of unleaded gasoline in Greater Cincinnati was reported to be $2.41 (The Cincinnati Enquirer, February 3, 2006). During periods of rapidly changing prices, the newspaper samples service stations and prepares reports on gasoline prices frequently. Assume the standard de-viation is $.15 for the price of a gallon of unleaded regular gasoline, and recommend the appropriatesample size for the newspaper to use if they wish to report a margin of error at 95% con dence.
a. Suppose the desired margin of error is $.07.b. Suppose the desired margin of error is $.05.c. Suppose the desired margin of error is $.03.
A football coach recorded in the practice sessions how many attempts were needed for a certain player to kick a field goal from the 25-yard line, and got the following numbers 3
The present value (price) formula for a coupon bond is: PV = C/(1+i) + C/(1+i) 2 + ... + C/(1+i) n + F/(1+i) n Part a The present value (price) formula for a zero cou
1.) Two dice are rolled and the sum is calculated. Let X represent the sum of the two dice. Construct a probability distribution expressing probabilities in fractional form. 2
#questionw..what is ment by resolance tube
The manager of a large industrial plant is interested in investigating whether age has an effect on the leadership ability of employees. 66 employees were randomly selected, divide
1. If each sample taken has 500 units, and the average proportion nonconforming is 0.034, what is the upper and lower control limits for the p-chart? 2. If you sample 450 parts
explain tthe two uses of time serie, and the four components of time series?
X f 150 3 400 4 300 5 200 6
I have a box that measures 3m x 3m x 3m. What is the volume of the cube?
what''s the asset?
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