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he Oil Price Information Center reports the mean price per gallon of regular gasoline is $ 3.79 with a population standard deviation of $ 0.18.
Assume a random sample of 40 gasoline stations is selected and their mean cost for regular gasoline is computed.
1. What is the population in this case? what is the sample? what is the sample size?2. What is the standard error of the mean in this experiment?3. What is the probability that the sample mean is between $ 3.77 and $ 3.81?4. What is the probability that the difference between the sample mean and the population mean is less than 0.01?5. What is the likelihood the sample mean is greater than $ 3.87?
Conduct a test at the .05 level of significance to determine if there is any difference in the mean selling price of new homes in Omaha versus Kansas City.
Let's say I have a new drug that I think helps diabetics. So I perform clinical trials in accordance with the FDA requirements. I give one randomly selected groups of diabetics the drug, and another sample gets a placebo pill.
Use an alpha level of .01 and test the hypothesis that the two methods are producing the same mean.
Which shows the production time requirements for the 4 required manufacturing operations and the accounting department's estimate of the profit contribution per bag?
Find out the operating characteristics for this system.
There is a 0.05 probability of thunderstorms in a major U.S. city. If there is a thunderstorm in that city, the probability is 0.28 that a flight departing that major city will be late.
Rolling a die Simulate 36 rolls of a fair die. Give the relative frequency and the corresponding theoretical probability of each of the outcomes and compare them.
What does central limit theorem say about distribution of John's average payoff after 365 bets in a year?
A second sample of 61 has a mean of 100 and a population standard deviation of 8. Conduct a z-test about a difference in sample means using a 0.03 significance level and the following hypotheses.
Which of the following preference orderings, if any, could characterize his preferences? Tell me any/all that apply, and explain how you know this.
Find out the earliest completion time for play and critical path.
Determine the oucomes in the sample space, and construct a probability distribution table. Find the expected value of the following game.
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