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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.
How to start solving the null hypothesis that the mean daily caloric intake in the adult population of a rural county is 1800 calories. A sample of 400 had a mean of 1785 and SD 24
can we polarize sunlight by the help of Polaroid disc?
Model 1: Let's consider the logistic regression model, which we will refer to as Model 1, given by log(pi / [1-pi]) = 0.25 + 0.32*X1 + 0.70*X2 + 0.50*X3
Find a population data set that contains six entries, has a mean of 5, and has a standard deviation of 2
multiplicative model..
Studies have linked brain size in infants and toddlers to a number of future ailments, including autism. One study looked at the brain sizes of 30 autistic boys and 12 nonautistic
I have statistic assignment can do it at 2.30 H, because I don''t have time
proof that the square of a normal distribution will give a chi-square
what isweight and why is it necerary to calculate its index numbet
How many different starting lineups of 5 basketball players can be chosen from a squad of 13 players?
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