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A manufacturer of a new, less expensive type of light bulb claims that this product is very well made and even more reliable than the higher priced competitive light bulbs. In order to examine the manufacturer's claim, a random sample of 50 bulbs is tested for length of life. The results are the following.
a. Compute the 99% confidence interval for the mean life of this new type of light bulb.
b. Interpret this interval.
c. How many light bulbs should be tested, if the manufacturer wants to be 99% confident of being within 100 hours of the population mean life?
Dirichlet series
Every convergent sequence contains either an increasing, or a decreasing subsequence.
How many relations on A are both symmetric and antisymmetric?
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This question is asking you to compare the likelihood of your getting 4 or more subscribers in a sample of 50 when the probability of a subscription has risen from 0.02 to 0.06.] Talk about the comparison of probabilities in your explanation.
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Suppose that in the four player game, the person who rolls the smallest number pays $5.00 to the person who rolls the largest number. Calculate each player's expected gain after one round.
Find the probability density function.
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