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the population of a certain city is now 74,000 people. If the population doubles every 25 years, what will the population be after 125 years?
in a poll respondents were asked if they have traveled to europe. 68 respondents indicated that they have traveled to
To help schedule staffing and equipment needs, a large hospital uses a multiple regression model to predict its 'bed census' y, the number of beds occupied at the end of each day.
two models of color tv sets designated alpha and beta are produced by allison company. the profit on alpha is 300 and
As reported by Runner's World magazine, the times of the finishers in the New York City 10-km run are normally distributed with a mean of 61 minutes and a standard deviation of 9 minutes. Let x be the finishing time for a finisher in the New York ..
Assuming that the life of bulbs follow Normal distribution, what is the probability that a randomly selected bulb will: Fail within 1200 hours? Survive between 1350 and 1650 hours?
Mean waiting time was 15 minutes and that the standard deviation was 4 minutes. The 95% confidence interval for the population mean of waiting times is?
To test the hypothesis that 48% of PC users have never used a Mac, the analyst took a sample of 50 PC customers drawn at random and found that 22 of them had never used a Mac.
Explain an organizational scenario where quantitative (ratio level of measurement) information is or could be used to make management decisions about creating, maintaining, or improving quality.
Internet users age 12-17 in proportion who opposes ads? Solve manually and then by mega stat. Point to your decision rule, your hypotheses and statistical and management conclusions."
Evaluate the area under the standard normal curve that lies to the left of z = - 3.49 and simple random sample of size
How many voters required to be sampled to evaluate the proportion within 0.05 with 95% confidence?
What is your null hypothesis? What is your alternative hypothesis? What your decision about the null hypothesis?
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