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1. For a particular brand of TV picture tube, it is known that the mean operating life of the tubes isµ = 9000 hr with a standard deviation of 500 hr. Determine the expected value and standard error of the sampling distribution of the mean given a sample size of n = 25. Interpret the meaning of the computed values.
assume the probability that a newborn is a boy is 51 that is p 051. suppose a family has 8 children. a what is the
Develop one research question from which you will formulate a research hypothesis - prepare a two to four page paper describing the results of a hypothesis test of one or two population means or population proportions.
if a researcher wishes to conduct a study about how much consumers in a target market segment intend to spend on a type
The standard deviation is around 2.8. How many students should be sampled to be within 0.5 drink of population mean with 95% probability?
a. Obtain the sum of squares for an AOV table by fitting complete and reduced models using a statistical software program. b. Is there significant evidence of a difference in the four methods of delivery based on the percentage of packages delivere..
the dividend yield on shareholders funds of australias top 120 companies for the week ended friday 10 july 2009 is
In American football, touchdowns are worth 6 points.
Find the unique solution satisfying initial conditions y(1)=0 and y'(1)=1 for
suppose it has been observed that touchdowns scored in a game by your favorite football team are poisson random
a local drugstore owner knows that on average 100 people per hour stop by his store. find the probability that in a
An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was $275.66 with a standard deviation of $78.11.
In order to do so, they review 42 service calls and construct a 95% confidence interval for population mean: (2.468, 2.743). What can we conclude about the significance test of Ho: mu = 2.6 vs Ha: mu does not equal 2.6?
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