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In a study to estimate the proportion of residents in a city that support the construction of a new bypass road in the vicinity, a random sample of 1600 residents were polled. Let X denote the number in the sample who supported the proposal. To estimate the true proportion in support of the plan, we can compute p^=X+1600?/21600. The estimator p^ has bias
A. 1/(2×40).
B. 40/2.
C. 1/40.
D. 1/1600.
E. 0, so unbiased.
Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below.
If an employee is selected at random, what is the probablity that the employee is female or works as a member of admin?
What was the success probability of each O-ring?
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Also, the sample data appear to have a bell-shaped distribution. Construct the 95% confidence interval for the mean time spent on paperwork by all managers.
There are 3 radar stations and the probability of a single radar station detecting an enemy plane is 0.65. What is the probability of 2 stations detecting an enemy plane? Round your answer to nearest hundredth.
Since we cannot contact the real estate agents to follow up on these errors, for the purpose of this assignment we will ignore them and work with the data set as best we can.
1 an open label study where participant are aware of the treatment they are taking is conducted to assess the time
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questiona patient is seen at a clinic. a recent epidemic in town shows that the probability that the patient suffers
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