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The owner of a small computer store personally sells one computer per week on the average. Use the Poisson distribution to find the probability of randomly selecting a week in which she personally sold three computers.
To use excel I know I need to find the mean and x. I also know the corrct answer is .06. However, I am a bit confused about what the mean or the x would be in this scenerio. Can you help please.
A major hurricane is a hurricane with wind speeds of 111 miles per hour or greater. During the 20th century, the mean number of major hurricanes to strike the U.S. mainland per year was about 0.7.
The times for 300 college students of introductory statistics to complete a one-hour times exam.
What test can be performed to compare the percentage of participants who developed abnormal triglyceride levels between the vitamin A group and the trace group? Implement the test in Problem 10.68, and report a two tailed p value.
you are testing whether there is a significant difference in the proportions of college students and similar aged non college students having accidents during the two year period. Is this a one sample or two sample test?
Five cards are drawn from an ordinary deck without replacement. Find the probability of getting:
What is the probability that a randomly selected mango weighs less than 14 ounces?
A box of nine golf gloves contains two left-handed and seven right-handed ... box without replacement, what is the probability that- (X) both gloves are right handed and (Y) one left-handed and one ... If two gloves are randomly selected with repl..
Compute the score based on their appropriate class means and standard deviations:
In order that the sample proportion and the population proportion not differ by more than 0.05 with 95% level of confidence, what sample size should be used?
Determine the probability that each of the 30 students will get computer in working condition?
Determine the upper and lower control limits for ?- (This Symbol Is Supposed to be an x not an a) and R-charts for the width of a chair seat when sample grand mean
You have two unbiased estimates, e 1 and e 2 , of a quantity with variances V 1 and V 2 respectively, and covariance Cov {e1,e 2 } = C. Form a new unbiased estimate:
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