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Let four random variables X1, X2, X3, X4 have common mean m1=m2=m3=m4= 5 and common variance (sigma 1)^2= (sigma 2)^2= (sigma 3)^2= (sigma4)^2= 6 and common correlation coefficient p(sub ij)= .1, i does not equal j. Determine the mean and the variance of Y=X1 +X2 + X3 + X4.
Share 1 real-world binomial distribution situation and 1 real-world Poisson distribution situation. Be sure to explain why each example is defined as binomial or Poisson.
an april 15 2002 report in time magazine stated that the average age for women to marry in the united states is now
Therefore the team needs a new arena. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed.
what is the approximate width of a 90 confidence interval for the true population proportion if there are 12 successes
Checking the output by almost continuous sampling since the abnormal condition began. What is the probability that in a sample of 10 pieces: Exactly 5 will be defective?
The manager of a package courier service believes that packages shipped at the end of the month are heavier than those shipped early in the month.
A real estate agent has collected a random sample of 75 houses that were recently sold in a suburban community. She is particularly interested in comparing the appraised value and recent selling price of the houses in this particular market. The v..
it is believed that 4 of children have a gene linked to juvenile diabetes. researchers would like to test new
A study of family income is studied through a sample of 500 randomly selected families. The results can be summarized as the mean family income was 41,000 the median income was 29,000.
question aluminum and alzheimers disease.the relatives of a man recently diagnosed with alzhcimers disease are suing a
Standard deviation of the population is 9 hours. Give the null and alternative hypotheses. Compute the test and p-value. Use a=0.01 to make your conclusion based on the p-value.
consider two independent random variables xsub1 and xsub2 having the same cauchy distributionfx1pie1x2 for negative
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