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Past experience shows that 1% of the lightbulbs produced in a plant are defective. Find the probability that more than 1 bulb is defective in a random sample of 30 bulbs, using
(a) the binomial distribution and
(b) the Poisson distribution.
dental supplies ships a customer 60 boxes of a 30 boxes of b 60 boxes of c and 30 boxes of d. unit shipping costs for
In a regional spelling bee, the 8 finalists consist of 3 boys and 5 girls. Find the number of sample point the sample space S for the number of possible orders at the conclusion of the contest
suppose the monthly income of assistant managers of our local banks are normally distributed with mean of 40000 and a
Consider a random sample of size n from a normal distribution, Xi ~ N(m,9). a) Find the CRLB for the variances of unbiased estimators of m. b) Is the MLE, m(hat) = X(bar), a UMVUE of m?
the effectiveness of a new bug repellent is tested on 14 subjects for a 10 hour period. assume normally distributed
suppose many samples of size 49 are selected from a population with a mean 225 and a standard deviation 14. what
Use Gauss-Jordan method to determine solution to following system of equations?
the breaking strength of a rivet has a mean value of 10050 psi and a standard deviation of 505 psi.a what is the
Normal distribution with a standard deviation of 800. what sample size would be required to be 95% certain of estimating the mean error to within 150 of the true value?
What is the probability that the second pipe (with length Y) is more than 0.15 feet longer than the first pipe (with length X)? Give your answer to four decimal places. Hint: Do not use calculus to get your answer.
When a 99% confidence interval is calculated instead of a 90% confidence interval with n being the same, the margin of error will be
Determine the average number of parts waiting to be worked on, the percentage of time the operator is working, and the percentage of time the machine is idle.
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