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Assume that the background niose X of a digital signal has a normal distribution with u=0 volts and theta = .5 volt. ifv we observe n=100 independent measurments of this noise, what is the probability that at least 7 of them exceed 0.98 in absolute value?
a) use the poisson distribution to approximate this probability
b) use the normal distribution to approximate this probability
Use Chebyshev's theorem to find what percent of the values will fall between 120 and 150 for a data set with mean of 135 and standard deviation of 7.5.
according to a study published by a group of sociologists at the university of massachusetts approximately 49 of the
A histogram of time spent eating & drinking each day is skewed right. Use this result to explain why a large sample size is needed to construct a confidence interval for the mean time spent eating & drinking each day.
Assume each shot is independent of the others. If she shoots 6 arrows, what's the probability of each result described below. Her first bull's-eye comes on the third arrow.
Estimate the percentage of adult Internet shoppers in order to determine the maximum impact of Internet shoppers on its sales, what percentage of Internet shoppers should be used?
The firms are actually violating at least one regulaltion, what is the pmf of the number of firms visited by the inspector that are in violation of at least one regulation?
Assume that 5% of men and only .25% of women are colorblind. A colorblind person is chosen at random:
Provide a summary of the research article. Include a hypothesis null and hypothesis alternate statement for an ANOVA process. Identify a data set that can be used for your ANOVA process.
Calculate mean and SS for sample of difference scores.
An apple juice producer buys all his apples from a conglomerate of apple growers in one northwest state. The amount of juice squeezed from each of these apples
A manufacturer claims that he makes light bulbs each of which has a 0.9 probability of operating successfully when plugged in.
business needs to be at least $8 million dollars in annual sales before expansion could be considered. The following is data for the past 6 years. What should the owner's decision be regarding expansion in 2010?
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