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If 18 defective glass bricks include 10 that have cracks but no discoloration, 5 that have discoloration but no cracks, and 3 that have cracks and discoloration, what is the probability that among 6 of the bricks (chosen at random for further checks) 3 will have cracks but no discoloration, 1 will have discoloration but no cracks, and 2 will have cracks and discoloration?
Looking at the data, the manufacturer is incorrect in its label claim. Perform hypothesis testing to prove or disprove it. Is the manufacturer correct in its label claim? Explain.
tonya had 16 samples from a normal distribution the standard deviation is unknown. what t-value do we use in
a group of n men and m women is randomly lined up. find the expected number of men who are next to at least one woman.
an airline sells 250 tickets for a certain flight that only has 245 seats. on averageabout 2 of ticket purchasers do
Carry out a Z test using the five steps hypothesis testing with a two-tailed test at the .05 significance level, and make a drawing of the distributions involved.
brees inc. has current assets of 7500 net fixed assets of 28900 current liabilities of 5900 and long-term debt of
Compute the 95% confidence interval around the mean of each of the three groups and plot the confidence interval in the space provided above.
Cards are drawn one by one from a standard deck of 52 cards. Let X be the number of draws up to and including when the first diamond is drawn. If the cards are replaced in the deck, determine E(X). If the cards are not replaced in the deck, determ..
discuss the importance of identifying an appropriate distribution of the quality characteristic in process capability
consider babies born in the normal range of 37-43 weeks gestational age. extensive data supports the assumption that
A random variable X is normally distributed with mu = 60 and standard XXX = 11. What is zscore for X = 71
You are trying to set up a portfolio that consists of a corporate bond fund and a common stock fund. the following information about the annual return (per $1,000)of each of these investments under different economic condition is available
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