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Suppose that when a process is in control each item will be defective with prob- ability .04. Suppose that your control chart calls for taking daily samples of size 500. What is the probability that, if the probability of a defective item should sud- denly shift to .08, your control chart would detect this shift on the next sample?
An experimenter is randomly sampling 5 objects in order from among 49 objects. What is the total number of samples in the sample space?
Parametric tests (such as t or ANOVA) differ from nonparametric tests (such as chi-square) primarily in terms of the assumptions they require and the data they use. Explain these differences.
1 every time you go to a beach for vacation you take home a little sand to keep as a souvenir. over your lifetime you
The population of IQ scores forms a normal distribution with a mean of µ = 100 and a standard deviation of o = 15. What is the probability of obtaining a sample mean greater than M = 105.
for a standard normal probability distribution find the percentage of data that area within 1 standard deviation of the
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 the binomial distribution
peak expiratory flow pef is a measure of a patientotildes ability to expel air from the lungs. patients with asthma or
assume that the given procedure yields a binomial distribution with n trials and the probability of success for one
David Gallano, a wine merchant, has collected opinions on grape wine quality from a sample of his customers. These customers tasted wine made from grapes grown in three regions of the country.
from a large class a sample of 4 grades were drawn 64 66 78 and 87. from a second large class an independent sample of
Two mating parts have critical dimensions x1 and x2 as shown below. Assume that x1 and x2 are normally distributed with means 1 and mean2 and standard deviations s1 = 0.400 and s2 = 0.300.
What is the population mean? What is the best estimate of that value?
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