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Find the minimum required sample size of accounts of the Bechtel Corporation if the proportion of accounts in error is to be estimated to within 0.02 with 95% confidence. A rough guess of the proportion of accounts in error is 0.10.
For this assignment you will research and report on things happening outside the U.S. relative to many of the issues we have covered in this class. Compare and contrast U.S. and global companies doing business around the world and their behaviors ..
question 1 the temperature in jihlava follows a normal distribution with mean 50 degrees and standard deviation 10
Compute the probability for the given frequency distribution.
Here are heart rates for a sample of 30 students before and after a class break. At alpha =.05, was there a significant diffeence in the mean heart rate?
determined from the test in Part (b) and test the homogeneity of the six response curves. State the conclusion of the test and give the model you have adopted at this stage.
question a bed and breakfast breaks even every month if they book 30 rooms over the course of a month. their fixed cost
What is the probability that a randomly selected high school senior's score on the mathematics part of the ACT will be more than 29?
assume that 2 out of every 1000 people have a particular disease. a test has been developed to detect this disease.
A person rolls a pair of six-sided dice, which are equally likely to come up any number from 1 to 6. If the person rolls a seven he gets $0.
The sample mean X will be used to estimate. Determine the probability that the estimate will be off by less than .2 oz. Assume that the SD of the fills is .8 oz.
Preference to change blades is recorded. Do the data support the twin-blade manufacturer's claim? α=.05. This is a t-tests independent samples.
a manufacturer of light bulbs advertises that on average its long-life bulb will last more than 5000 hours. to test the
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