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One of four coins is countefeit and is either too heavy or too light.The problem is to identify the counterfeit coin but not to determine whether it is heavy or light. What is the lower bound on the number of comparisons required to solve this problem in the worst case? Show work.
suppose that x represents a single observation from the distn given by fx theta thetaxtheta - 1 for 0 lt x lt 1find
in 1965 about 44 of the us popuation had never smoked a cigarette. a nation survey of 1205 us adults during 2006
a. What is the probability of a type I error? b. Give the formula for the test statistic.
These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher.
Find the probability that the first marble drawn was blue given that the second marble drawn was red and what is the range space RY of this new random variable Y and give the probability distribution of Y in tabular form
Two pain relief drugs are being considered. A random sample of 6 doses of the first drug showed that the average amount of time required before the drug was absorbed into the bloodstream was ??
the population proportion is .30. what is the probability that a sample proportion will be within plusmn.04 of the
Construct a 95% confidence interval for the proportion of all those who experience some type of discomfort.
according to chebychevs theorem what percentage of a distribution will be within k 3.2 standard deviations of the
In a sample of 210 men, 35 prefer sugar free soft drinks. In a sample of 220 women, 42 prefer sugar free soft drinks. Using a significance level of 0.05, test whether women prefer sugar free drinks more than men. Calculate the p-value.
What is the 25th percentile of a X² distribution with 20 degrees of freedom? What symbol is used to denote this value?
a regression model with one independent variable x1 resulted in an sse of 50. when a second independent variable x2 was
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