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A biologist estimates that 50% of deer in the region carry a certain type of tick. for a sample of 300 deer selected at random, what is the chance that 155 or fewer deer have this tick?
Construct a 90% confidence interval for the population proportion p . Does your result agree with your conclusion in part (a)?
According to the undecidability theorem, most software quality properties are not provable. Therefore, what kind of testing techniques do we use to achieve software quality?
Polls showed the two main candidates in 2004 presidential election were nearly tied on the day before the election. To predict the winner a newspaper would like to have a poll that has a margin of error of less than 1%.
An electric power trading company has an option to buy 1,000,000 terawatts of electricity from a producer for $10 per terawatt. Other electric power trading companies have received this option and the company knows a decision must be made quickly.
Given that both balls selected are white what is the probability that bowl 3 was selected?
Where should the warranty limits be set so that only 10 percent of the HDTVs need repairs at the manufacturer's expense?
Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:
A population consists of 15 items, 10 of which are acceptable. In a sample of 4 items, what is the probability that exactly 3 are acceptable? Assume the samples are drawn without replacement.
Determine Probability using exponential distribution.The average time between failures of a laser machine is exponentially distributed with the mean of 40,000 hours.
A random sample of 180 full-grown lobsters had a mean weight of 16 ounces and a standard deviation of 3.0 ounces. Construct a 98 percent confidence interval for the population mean.
Give the Z score for person who scores (a) 340, (b) 310, and (c) 260. Give the raw scores for persons whose Z score on this test are (d) 2.4, (e) 1.5, (f) o, and (g) -4.5
What is the answer to the following unsorted data shows the number of traffic tickets given each day by Deputy Fife over the last eleven days.
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