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The length of Atlantic croaker fish are normally distributed with a mean of 10 inches and a standard deviation of 2 inches. An Atlantic croaker fish is randomly selected.
What is the probability that a fish is *exactly*, *precisely* to any level of accuracy or measurement, 12.0 inches long?
As reported by Runner's World magazine, the times of the finishers in the New York City 10-km run are normally distributed with a mean of 61 minutes and a standard deviation of 9 minutes. Let x be the finishing time for a finisher in the New York ..
Three consecutive even integers are such that the square of the third is 76 more than the square of the second. Find the three integers.
In the belief that Statistics is too hard, a student claims that the mean score on a final exam is less then 70. 15 scores will be chosen at random to test this claim.
What is the probability that one of these trucks selected at random would get a) between 13 and 15 miles per gallon? b) between 10 and 12 miles per gallon?
one class of 40 students complain that they were harshly graded in the examination as l0 students received A or B ; 17 received a C ; and the rest received a D or lower. QUESTION: Is the class's complain about harsher grading justified? ( use a : 0..
Suppose we want to compare the observed and expected number of events among the group 250 treatments.
Selected data for the company's operations last year follow (all currency values are in thousands of rupiahs):Assume that the company uses absorption costing. Compute the unit product cost for 1 gamelan.
Our bodies have a natural electrical field that is known to help wounds heal. Does changing the field strength slow healing? A series of experiments with newts investigated this question.
The president of Crooked Arrow National Bank wants to determine whether more than 60% of the banks loans are made to persons residing in Crooked Arrow.
Determine the test sequence that minimizes the total expected cost of testing an item. Prove that your proposed sequence is optimal in minimizing the total expected cost of testing an item.
Marconi Shipping Company packages their shipments in 50 ton containers. History has shown that the shipping department reports that the distribution of container weights follows the normal distribution
An investment firm with 10,000 clients would like to accurately forecast the average dollar amount their current customer will deposit over the coming year.
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