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The average weight of a Snickers bar is 2.07 oz, with a standard deviation of 0.2 oz. How much must a Snickers bar weigh to be in the upper 10%?
Shade the bell curve, use the z-table to find the z-score that corresponds to 10%, convert the z-score back to the actual number.
1. What is the probability a vacationer will visit at least one of these attractions?
1. a random sample of 16 size d batteries for cars yield a mean of 2.8 hours with standard deviation 1.3 hours.a find
What is the mean number of Product A that Bob inspects in one hour?
Suppose that it is important to demonstrate that the wall thickness exceeds 4.0 mm. Test appropriate hypotheses using these data. Draw conclusions at α= 0.05.
The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters. Determine the cumulative distribution function of flange thickness.
why the harvard nurses health study is an observational study. discuss whether it would be probable to gather similar
a sample of 81 account balance of a credit company showed and average balance of 1200 with a standard deviation of 126.
Processing an order for more disks cost $15. Zip uses 60000 disks annually, and the company has a 25% cost of capital. (a) Find the optimal order quantity.
A Variable has a mean of 100 and a standard deviation of 16. Four observations of this variable have a mean of 108 and a sample standard deviation of 12. Test whether the sample has been drawn from the population.
suppose you just received a shipment of thirteen televisions. three of the televisions are defective. if two
in a test of effectiveness of garlic for lowering cholesterol 42 subjects were treated with garlic in a processed
a multiple choice quiz consists of 50 questions each with 4 possible answers. find the mean for the number of correct
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