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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 gambling machines works in the following way. The player inserts a penny into 1 of 5 slots which are colored Blue, Red, Orange, Yellow & Green corresponding to 5 colored light bu
Capital budgeting Techniques Financial commitment spending budget (or investment appraisal) is the planning process used to figure out whether a company long run purchases such
what does it mean by sales less of goods sold and cost less of goods sold
The Video Club Martin rents movies at "regular price" andat "half price". Usually if the films are regularly priced one day, they will be at regular price the next day with probab
what is the largest coefficient of (1+3x)^4 is ?
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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
A survey was done where a random sample of people 18 and over were asked if they preferred comedies, dramas, or neither. The information gathered was broken down by age group and t
). Calculate Karl Pearson’s coefficient of correlation from the following data , using 20 as the working mean for price and 70 as the working mean for demand: Price: 14 16 17 18 1
The table below shows a breakdown of women between the ages of 20 to 64 who have had a Pap smear--it shows the number in each age group cross tabulated with the time of their last
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