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A machine cuts circular filters from large rolls of material. If 7.3% of the filters fail to meet specifications, use the normal approximation to the binomial to compute the probability that a sample of 100 of the filters will contain 5 or fewer that fail to meet specifications.
A committee of three is selected at random from a set consisting of five Democrats, eight Republicans, and two Independents.
Are all the events in this distribution mutually exclusive? Describe in detail.
The goal is to get people thinking about how they can actually use correlation and regression in their real life, and where and how can they can really benefit from these techniques?
From an inventory of 48 cars being shipped to local automobile makers, 12 have defective radios installed. What is the probability that one particular dealership receiving 8 cars will find 2 radios being defective? Make assumptions if necessary.
In a bumper test, three types of autos were deliberately crashed into a barrier at 5mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Are mean crash damages the sa..
Muscular dystrophy is an incurable muscle-wasting disease. The most common and serious type, called DMD, is caused by a sex-linked recessive mutation. Specifically; women can be carriers but do not get the disease; a son of a carrier has probabili..
A sample of 100 widgets from the Acme production line shows that the average lifespan of these parts is 900 hours. The standard deviation of production has been 200 hours historically and is known to be normally distributed.
The following frequency distribution reports the number of frequent flier miles, reported in thousands, for employees of Brumley Statistical Consulting, Inc. during the first quarter of 2004.
The length of a Colorado brook trout is normally distributed. What is the probability that a brook trout's length, (Round your answers to 4 decimal places.)
The weight of an almond is normally distributed with mean 0.05 ounce and standard deviation of 0.015 ounce. Find the probability that a package of 100 almonds will weigh between 4.3 and 5.3 ounces.
Explain the difference between multiple independent variables and multiple levels of independent variables. Which is better?
In a standard normal dist. what is the prob. of getting a value less than 1.63? How about between 1.13 and 1.86? How about greater than .58?
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