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suppose that the 12 random variables X1...X12 are iid and each has a uniform distribution on the interval [0,20]. for j=0,1,..19,let Ij denote the interval (j,j+1).Determine the probability that none of the 20 disjoint intervals Ij will contain more than one of the random variables X1...X12.
Find the probability that the number who consider themselves baseball is (a) exactly 8, (b) at least 8, &(c)less than 8.
Woodco manufactures tables and chairs. Each table and chair must be made entirely out of oak or entirely out of pine. A total of 150 board feet of oak and 210 board feet of pine are available.
Find the critical value for a two tailed F-test with alpha=.05 when the sample size from which the variance for the numerator was obtained was 21 and the sample size from which the variance for the denominator was obtained 12
The Ntional Lightning Detection Newtowk uses automatic sensors to watch for lightning in areas of 10 square kilometers. What are the mean and standard deviation of the total number of lightning strikes observed?
A sample of 8 jars has a mean of 15.6 ounces and a standard deviation of 0.3 ounce. Is there enough evidence to support the consumer's conjecture at a = 0.05 and how can this be graphed?
State the Null Hypothesis and the Alternative Hypothesis. Determine the test statistic. Determine the P-value
We code middle-aged Americans as 1 and senior citizens as 0, the logistic regression model for senior citizens
The manager of a department store wants to determine what proportion of people who enter the store use the store's credit cards for their purchases.
Let {Xn : n >=1} be a sequence of positive independent random variables with E(Xn) = c 2 (0; 1) for each n. Let Yn = X1X2...Xn, the product of the Xi's. Use Markov's inequality to prove that Yn ~ 0 in probability.
Use a graphical technique to compare the ages, household incomes, and education of the five groups of car buyers. (Do not use Box plots or Stem-and-Leaf Display).
Using a significance level of 0.03, carry out a hypothesis test to determine if there is convincing evidence to support the claim that fewer than half of adult Americans can name at least one justice currently serving on the Supreme Court.
What is the level of measurement for these items related to the newspaper business?
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