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When calculating all the values of a binomial distribution, the work can usually be simplified by first calculating b(0; n, θ ) and then using the recursion formula
Verify this formula and use it to calculate the values of the binomial distribution with n = 7 and θ = 0.25.
eleven patients were weighed before and after a diet which was designed to help patients reduce weight. eight of these
The MacBurger restaurant chain claims that the waiting time of customers for service is normally distributed,
the number of items rejected daily by a manufacturer because of defects was recorded for the past 30 days. the results
Assume that a sample is drawn and z(α/2) = 1.65 and σ = 35. Answer the following questions. (A) If the Maximum Error of Estimate is 0.04 for this sample, what would be the sample size?
a) yes, because the tst value -3.46 falls in the noncritical region. b) no, because the test value -1.98 falls in the critical region. c) yes, becasue the test value -3.46 falls in the critical region. d) no because the tst value -1.98 falls in the n..
Senate should not worry. He polls one legion of 1,000 men and finds that 340 of them are barbarians. What is the test statistic for this hypothesis test?
Construct a 98% confidence interval for the population mean and interpret the result (round margin of error E to the nearest dollar).
the maintenance manager at a chemical facility knows that the days between repairs for a specic chemical reactor
If pX (respectively, pY ) is the true proportion of times the first (respectively, the second) cleaner is successful at removing the specific stain, determine an approximate 95% confidence interval for pX - pY .
40 numbers are rounded off to the nearest integer and then summed. if the individual round-off error are uniformly
Call this the customer's age. Next, for each of 100 customers, draw from the N(10; 2) distribution and call this the customer's length of membership.
the random variable x has a poisson distribution with mean 40. give an approximate value of the probability p 37 less
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