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A recent study of robberies for a certain geographic area showed an average of 1 robbery per 20,000 people. In a city of 80,000 people, find the probability of the following and please show your work.
(a) 0 robberies
(b) 1 robbery
(c) 2 robberies
a client gives you a data set of 30 observed values that represent the number of gallons of gas that 30 individual
Interpret the three confidence intervals in terms of whether there is a significant difference between the mean of the sample and a hypothesized mean of 150.
the real estate assessor for a county government wants to study various characteristics of single family houses in the
Determine the range of values containing 50% of the population of x. From a large sampling (N>5000), we find that x has a mean value of 5.2 units and a standard deviation of 1.0 units.
1assume your federal income tax rate fitr is 28 and state income tax rate sjtr. is 8. calculate your after-tax cash
To avoid losing money, the top 5% (the heaviest 5%) is labeled overweight. A) What proportion of boxes is underweight?
Is there a more efficient way to design the experiment to answer the same question? In other words, is there a better way to make use of this data?
an elevator in the apm building can carry about 20 people with a total weight of 3000 lbs. suppose that the average
What can R2adj do if we add another variable to a regression equation? What can R2 do if we add another variable?
They also send the upper 2.5% directly to the company without an interview. Based on the data the assumption of a bell-shaped distribution, what score should be used for the two cutoffs?
What is the sensitivity and specificity of the test? Suppose that 1 out of 500 infants are born with Down's syndrome.
1.in the 2004 presidential election early exit polls conducted at key precincts indicated a strong lead for john kerry.
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