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According to Topaz Enterprises, a Portland, Oregonbased airfare accounting firm, "more than 80% of all tickets purchased for domestic flights are discounted" (Travel Weekly, May 15, 1995). The results of the accounting firm's survey of domestic airline tickets are summarized in the table.
a. Give your opinion on whether the data described in the table are from a population or a sample. Explain your reasoning.
b. Display the data with a bar graph. Arrange the bars in order of height to form a Pareto diagram. Interpret the resulting graph.
c. Do the data support the conclusion reached by Topaz Enterprises regarding the percentage of tickets purchased that are discounted?
Is the hypothesized difference (0.00) within the interval? Given the presence or absence of the 0.00 value within the interval, is this consistent with the findings of th
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For planning purposes, the hospital physician staff wold like to know the probability that a given patient is a smother is the patient has a serious illness.
Which gives me 39.5 people. That is the way that my book figured it out for 10 people. I just did to the 50th power instead of to the 10th power. Am I not doing it correct?
Population is know (from a previous large survey) to be $3000 with the standard deviation of $400. Find the 99% confidence interval for the sample mean.
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