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A recent study of 50 self service gasoline stations in the greater cincinnati northern kentucky metropolitan area revealed that the mean price of unleaded gas was 2.799 per gallon. The sample standard deviation was $0.03 per gallon.
A. Determine a 99 percent confidence interval for the population mean price.
B. Would it be reasonable to conclude that the population mean was $2.50? Why or why not?
According to table, which presents a MODI solution for a transportation problem, if that solution is used, which of the following is true.
Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0?
seventy percent of married couples paid for their honeymoon themselves. you randomly select 20 married couples and ask
The number of senior citizens (65 and older) in the US in millions n years after 1990 can be estimated using the formula
A director of an agency is hiring temporary help. In making plans, he has to know whether there isi any difference in the use of the agency at different seasons of the year.
two samples of size 25 each yielding x-bar 6.47 sx 1.14 y-bar 6.17 and sy 1.166 show a significant difference
A financial analyst estimates that the probability that the economy will experience a recession in the next 12 months is 20%. She also believes that if the economy enters a recession
A sample of 25 students enrolled in the university indicates that X (bar) = $285.4 and s = $42.20. Using the 0.05 level of significance, is there evidence that the population mean is above $300?
A Hot Fudge Sundae has on average 12 ounces of ice cream. If I were to set up a hypothesis test to test the ability of a new employee making the hot fudge sundae with an average of 12 ounces of ice cream
Suppose that the number of calories in McDonald's Egg McMuffin is normally distributed random variable with mean of 290 calories and standard deviation of 14 calories.
assume that a radiologist group practice has the following cost structurefixed costsnbspnbspnbspnbsp
Find the probability that the mean weight of those loads is less than 44.24 tons. Assume that the variable si normally distributed.
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