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Sodas in a can are supposed to contain an average 12 oz. This particular brand has a standard deviation of 0.1 oz., with an average of 12.1 oz. If the contents in the population of all cans follow a normal distribution, what is the probability that the mean contents of a six-pack are less than 12 oz?
You may assume the sample data comes from a population that follows a normal distribution.
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The chi-square goodness of fit test can be used when we:
Find a 90% confidence interval for the population mean of annual growth (of those trees with an initial size of 2.41-2.60 centimeters).
It is estimated that 3% of the athletes competing in a large tournament are users of an illegal drug to enhance performance. The test for this drug is 90% accurate.
Select the variable team salary and find the mean, median, and the standard deviation
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The amount of time ships spend at the Philadelphia dockyard follows an exponential distribution and the average time spent in the dockyard is 3.1 days.
Quality Control A quality inspector checked for imperfections in rolls of fabric for one week. The random variable x represents the number of imperfections found.
Determine the probability that the sample mean is 20 or higher? What is the probability that the sample mean falls within 2 points of the population mean?
The number of smokers among 120 randomly selected students will vary from group to group. Explain why that number can be described wit a normal model.
Probability of a flush. Poker player holds flush when all 5 cards in hand belong to same suit (clubs, diamonds, hearts, or spades).
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