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Question: A large mail-order company has placed an order for 5,000 thermal-powered fans to sit on wood-burning stoves from a supplier in Canada, with the stipulation that no more than 2% of the units will be defective. To check the shipment, the company tests a random sample of 400 fans and finds 11 defective. Should this sample evidence lead the company to conclude the supplier has violated the terms of the contract?
Write the null and alternative hypotheses for the following example. Determine if the example is a case of a two-tailed, a left-tailed, or a right-tailed test.
We found our proportion of getting doubles was 15% to 16%. Using probability theory how often (i.e, what proportion of time) would you theoretically expect to roll doubles from 2 fair dice?
a quality control technician is checking the weights of a product. she takes a random sample of 8 units and weighs each
Discuss the factors to be considered in setting up appropriate channels of distribution for a major food producer introducing a new brand of yoghurt.
question a popular media poll revealed that 44 of australian adults in the 18-34 years category think that lsquomade in
Suppose a sequence of independent trials is performed where each trial results in either success or failure. Suppose X=the number of failures before the first success, with p=probability of success on any one trial.
Assuming that both turnover and costs have normal distributions, each with a standard deviation of $250000, what is the probability that the company makes a profit?
Big heads? The army reports that the distribution of head circumference among male soldiers is approximately Normal with mean 22.8 inches and standard deviation
sixty percent of all vehicles examined at a certain emissions inspection station pass the inspection. assuming that
fuel economy estimates for automobiles built one year predicted a mean of 25.8 mpg and a standard deviation of 7.2 mpg
compare and contrast the mean the median and the mode. which statistic is not as beneficial for extreme scores and
question hicks law predicts how long it will take a user to pick out a given element on a website page from among all
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