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Manufacturing and Product Development
A company has developed a very inexpensive explosive-detection machine for use at airports. However, if an explosive is actually in a suitcase, the probability of it being detected by this machine is only 0.60. Therefore, several of these machines will be used simultaneously to screen each piece of luggage independently. Suppose a piece of luggage actually contains an explosive.
a. If three machines screen this luggage, what is the probability that exactly one will detect the explosive? What is the probability that none of the three will detect the explosive?
b. If four machines screen this luggage, what is the probability that at least one device will detect the explosive?
c. If five machines screen this luggage, what is the probability that at least one device will detect the explosive?
d. How many machines are necessary for screening in order to be certain that at least one device will detect the explosive with probability 0.999 or greater?
A sample of N=16 scores has a M=45 and SS=960. Calculate the sample standard deviation (s) and the estimated standard error (sm) for the sample mean
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In a study of nursing home patients, the following data were obtained for each patient; - Classify each variable by whether it is nominal, ordinal, interval, or ratio according to Stevens' classification.
ATM center in Mumbai is random with an average rate of 1.3 customer per min. Assume the arrival follows a Poisson distribution, calculate the probability that: Not a single customer arrived in a minute.
Find the probability that a randomly selected student is a nursing major. Find the probability that a randomly selected student is a nursing major given that the student is a male.
Ignoring all other losses, what premium should the company charge to make an average net profit of 1.5% of the policy's face value?
an instructor computed a least squares regression line to predict final course percentage based on exam 1. she got the
Use graphical sensitivity analysis to find out range of probabilities of state of nature S1 for which each of decision alternatives has largest expected value.
For sample of size 100, what is the mean and standard deviation of the sample mean.
How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?
question a political party suspects there are differences in presidential candidate preferences based on age. a
If K is infinite, assume f1 and f2 are injective. Prove by constructing an explicit isomorphism that (H x_f1 K) is isomorphic (H x_f2 K)
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