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1. A seafood omelet will be made with two eggs, a piece of salmon, and a slice of cheese by choosing the items at random from four eggs, two pieces of salmon, and three slices of cheese. One egg, one piece of salmon, and one slice of cheese have gone bad. What is the probability that the omelet will contain at least one bad item?
2. (Coincidence). Three families, each with three members, are lined up at random for a picture. What is the probability that members of each family happen to be together (that is, not separated by someone from another family) in the picture?
In a shipment of 52 vials, only 12 do not have hairline cracks. If you randomly select 2 vials from the shipment, what is the probability that none of the 2 vials have hairline cracks?
What level of confidence did the statistician use in constructing this interval? Explain carefully, showing all steps in your reasoning. Hint: sample proportion is the midpoint of the stated confidence interval.
1.a researcher is interested in comparing sat scores for students enrolled in public schools private schools and those
a factory produces 1400 beams a day which are on average 2.5 defective. find the probability out of 70 beams inspected
a test has a mean of 104 and a standard deviation of 16. we want to be 98 certain that we are within 4 points of the
If H0 is in reality false and it is legitimate to use a directional H1, which of the following will yield a more powerful test? one-tailed alternative hypothesis
construct a frequency distribution table for these data. what type of graph would be appropriate to show the frequency distribution for these data?
Decide if the events A and B are mutually exclusive or not mutually exclusive. A card is drawn from standard deck of 52 playing cards.
a hair salon did a survey of 360 customers regarding satisfaction with service an type of customer. a walk-in customer
Must you assume that the population amount of paint per can is normally distributed here? Explain
More than 5 percentage points in either direction from what would have been obtained by interviewing all voters in the United States. Find the sample size suggested by this statement.
What is (1 – ß), the probability of rejecting the null hypothesis of part a, when in fact the true yield of the process is 0.925?
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