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Each time that Steven calls his friend Adam, the probability that Adam is available to talk with him is p independently of other calls. On average, after how many calls has Steven not missed Adam k consecutive times?
Suppose there are two samples of size 6 and 7, with a rank sum of 58 in the sample of size 6. Using the Wilcoxon rank sum test, evaluate the significance of the results, assuming there are no ties.
Consider each assumption in turn. What happens if the assumption is not satisfied? What, if anything, can be done to fix the problem?
Explain the least squares method and least squares regression line. Why are they called by these names?
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.
specimens of blood from 10 different animals were analyzed for blood count say y in units of 100 and packed cell volume
Let x equal the number of cells activating the alarm when the temperature reaches 100F. Find the expected value and the variance for the random variable x.
1. Assume the random variable X is normally distributed with mean µ=85 and standard deviation o=5. Find the indicated probability.
Songs on an iPod David's iPod has about 10,000 songs. The distribution of the play times for these songs is heavily skewed to the right with a mean of 225.
is there a relationship between gender and the type of car driven? a random sample of 1000 adults was obtained. the
the e-mail usage for two different plants of a large company was compared at level of significance 0.05. a sample of
At the 5% level of significance, can we infer that the population mean weight of athletic men is lower than the population mean weight of non-athletic men by more than 2 pounds?
What's the expected value of sample information? How much might the physicians be willing to pay for a market study?
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