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What is the Central Limit Theorem? How large should the sample size be if the underlying distribution of the population values are:
a. Normally distributed (discuss).
b. Non-normally distributed. (discuss)
2. What is the difference, if any, between the standard deviation of the sample and the standard error of the mean? Discuss
Compute the sample correlation coefficient r. Compute the coefficient of determination. Give a brief explanation of the meaning of the coefficient of determination in the context of this problem.
approximately 29 of the calls to an airline reservation phone line result in a reservation being made.a suppose that an
a long time ago in a galaxy far far away the average density of stars is 17 stars per cubic parsec a cubic parsec is a
The Gallup organization conducted a telephone survey with a random selected national sample of 1005 adults, 18 years and older. The survey asked the respondents, "How would you describe your own physical health at this time? "Response categories w..
What are various non-parametric tests utilized in business decision making? Give an example of each test with an appropriate business situation.
The time to failure of a nickel-cadmium battery is Weibull-distributed with parameters v=0 α = 1/2 years and β = 1/4. Find the fraction of batteries that are expected to fail prior to 1.5 years.
for the z-score equation if given the standard deviation as well as n how do we know whether to make the standard
if a person bought one share of google stock within the last year what is the probability that the stock on that day
Smoking on campus. suppose 20% of the students on campus smoke. you select two students at random. In what percentage of samples will both students be smokers?
Which measure of family wealth is most important, when making political decisions, the national mean, median or mode?
health service managers say that doctors should not spend more than 2 hours a day doing paperwork. a sample of 40
a witness to a hit-and-run accident told the police that the license number contained the letters rlh followed by 3
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