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In a shipment of 53 vials, only 13 do not have hairline cracks. If you randomly select one vial from the shipment, what is the probability that it has a hairline crack?
What conclusion is appropriate when He cannot be rejected and what conclusion is appropriate when He can be rejected - What is the p-value for the hypothesis test?
stratum 3 contains 1,000 invoices, and stratum 4 contains 3,450 invoices. A sample of 500 sales invoices is needed. What type of sampling should you do? Why?
Improperly filled orders are a costly problem for mail-order houses. To estimate the mean loss per incorrectly filled order, a large firm plans to sample n incorrectly filled orders and to determine the added cost associated with each one.
An accountant wants to test the hypothesis that the proportion of incorrect transactions at four client accounts is about the same. A random sample of 80 transactions of one client reveals that 21 are incorrect
your company produces two products model alpha and model beta. these products have profits or contributions of 120 and
Suppose a major real estate development corporation has hired you to research the features of housing for which people will pay the most in making a home purchasing decision.
Suppose we ?ip a coin n times and let p denote the probability of heads. Let X be the number of heads. We call X a binomial random variable, which is discussed in the next chapter.
the table below shows the probability that x households are tuned to monday night football on abc when it is aired.
The "greasers" are working in te pits guarantee that the oil change will take no longer than 20 minutes. If it takes longer that that, a customer will only have to pay half-fare. What is the approximate percentage of customers that can expect to p..
Determine and interpret the p-value for the test. Source: Bureau of the Census, Statistical Abstract of the United States 2009, p. 163.
The types kinds of statistical information collected in your professional setting. Provide examples to illustrate the information/data.
a student wants to assess whether her dog muffin tends to chase her blue ball more often than she chases her red ball.
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