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Fuel economy estimates for automobiles built one year predicted a mean of 25.8 mpg and a standard deviation of 7.2 mpg for highway driving. Assume normal model.
What is the probability that a randomly selected automobile built this particular year gets more than 16.44 mpg? (round 4 decimals)
The lowest 2.5% of gas mileages of automobiles built this particular year get less than how many miles per gallon? (round 1 decimal)
Find the probability that for a randomly selected office hour, the number of student arrivals is 3. (b) What is the probability that he will get at most 5 students in a randomly selected office hour?
market researcher gartner dataquest reports that dell computer controls 27 of the pc market in the united states.
Suppose you found that in doing the hypothesis test, you were able to reject the null hypothesis. What is the most appropriate conclusion to draw?
The mean, median, and mode are the most common measures of dispersion (spread).
Determine the typical seasonal patterns for sales using the ratio-to-moving-average method. Project the sales for 2004, and then seasonally adjust each quarter.
6. Assuming that the distribution of Mental Health scores for men is normal, where are 99% of the men's mental health scores around the mean in this distribution? Round your answer to two decimal places.
what is the estimated standard error for a sample of n 4 scores with a variance of s2 36?a. the square root of 363b.
Suppose that the mean amount wagered by all patrons is $287 with a standard deviation of $15. You should give free accomodations to those individuals who wager over how much money?
Suppose 1.5 percent of the antennas on new Nokia cell phones are defective. For a random sample of 200 antennas, find the probability that:
Develop a regression model to identify the fixed overhead costs to the consulting group and what is the constant component of the consultant group's overhead?
in a recent study of 44 eighth graders the mean number of hours per week that they watched television was 19.5 with a
a company studied the number of lost-time accidents occurring at its brownsville texas plant. historical records show
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