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Order a deck of 52 cards randomly into a sequence. We say five consecutive cards form a flush if all these five cards have the same suit. What is the expected number of flushes we have in this sequence? Please express your answer as a single fraction with one integer in the numerator and one integer in the denominator.
Given the calculated design effect, will the standard errors under clustering be smaller or bigger under simple random sample design?
From past experience with similar products, a company knows that a new product has a 0.60 chance of success on the national market. If the test indicates that the product will be successful, what is the probability that it really will be successfu..
Can you estimate the probability that the next 10 customers will spend an average of at least $40? Explain.- Is it likely that the next 50 customers will spend an average of at least $40? Explain.
In a random sample of 15 Americans 18 years old or older, find the probability that exactly 10 have read at least six books within the past year, Interpret these results.
a utility company serves 50000 households. as part of a survey of customer attitudes they take a simple random sample
Calculate the p- value and use it to test H0 versus H a at each of a .10, .05, .01, and .001. d How much evidence is there that the mean composite satisfaction rating exceeds 42?
Since the injury to Derrick Rose, at least six NBA players have experienced similar injuries-torn ACLs. State two possible explanations for this rare rash of injuries. Which explanation do you think is more plausible? Why?
(a) State formally the hypotheses necessary to conduct a directional test of no difference between the two population means.
In order to test to see if there is any significant difference in the mean number of units produced per week by each of three production methods, the following data were collected:
Use the Normal Curve applet. The 68-95-99.7 rule for Normal distributions is a useful approximation. You can use the Normal Curve applet on the text Web site
27% fall into both categories. What is the probability a randomly selected student commutes and does not participate in a student organization?
A comparison was made between number of cigarettes smoked in a day by a sample of females and a sample of males.
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