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A machine that cuts corks for wine bottles operates in such a way that the distribution of the diameter of the corks produced is well approximated by a normal distribution with mean 3 cm and standard deviation 0.1 cm. The specifications call for corks with diameters between 2.9 and 3.1 cm. A cork not meeting the specifications is considered defective. (A cork that is too small leaks and causes the wine to deteriorate; a cork that is too large doesn't fit in the bottle.) What proportion of corks produced by this machine are defective?
Write a report to be presented to the management of CardioGood Fitness, detailing your findings -
question a set of n 20 pairs of scores x and y values has ssx 25 ssy 16 and sp 12.5. if the mean for the x values
The standard deviation of the population of adult female height scores is 3 inches. A random sample of 50 women yields a mean height of 64 inches. Calculate the standard error of the mean.
based on the certain data a null hypothesis is rejected at the 0.05 level of significance. would it also be rejected at
The average age for the individuals in the sample is M=48.9 years. How likely is it to obtain a random sample of n=16 jurors with an average age greater than or equal to 48.9?
An Australian zoologist is interested in the physiological characteristics of three species of kangaroos. He randomly selects three sanctuaries from all sanctuaries in Australia.
Q1. A prison psychologist recorded the number of rule infractions for 15 prison inmates over a six-month period to be 5, 4, 2, 4, 3, 5, 2, 0, 4, 4, 5, 5, 3, 4, and 3. a. Make a frequency table. b. Make a histogram based on the frequency table.
If it costs 1 cent to make a liver-flavored biscuit and 2 cents to make a chicken-flavored one, what is the optimal product mix for a package of the biscuits in order to minimize the firm's cost?
each day at a manufacturing plant a lot of 8 items are manufactured and three are known to be defective. a sample of 2
Represent the data given below with a suitable diagram. Draw a histogram and a frequency polygon for the following data.
A foreman for a firm admits that on 10% of his shifts he forgets to shut off the machine. This causes the machine to overheat and the probability that a defective mold will be produced during the early morning run increases from 2% to 20%.
what are some of the important factors that have brought about the e-global
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