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A random sample of 900 individuals was performed that recorded each individual's income. The sample mean was found to be 51 and sample standard deviation was 13 (both measured in thousands of dollars). What is the bound on the error of estimation ( or margin of error) for the 95% confidence interval for the population mean income?
Your answer should be correct to three decimal places. Show all your work.
Obtain a graphical representation of the relationship and give a brief description of the relationship and estimate the simple regression line and interpret the estimated relationship.
What are the five steps for calculating probabilities of events? Please apply these steps to an example.
If a six appears for the second time, the process is repeated with the move depending on the number shown and the previous throws. If a six appears for the third time, the turn of the player ends without moving the token.
Normal with mean 48 months and standard deviation 9 months. The company has decided to give a guarantee for the sensors for 3 years. What % age of the sensors will not satisfy the guarantee.
What decision would Beverly make if she were optimistic?
The DoD builds complex architectures for all major weapons systems and has significant experience in developing systems of systems.
Compare value of test statistics F obtained in part(2) with value of t 2 , square of test statistic for testing H 0 : β 1 =0 that was needed in test null hypothesis that true slope is 0. Interpret the results of this test.
In week one you were asked to read/watch the "slide share" show 99 Facts about the Future of Business. Then you were to create a list of five expectations that society has for business leaders from the slide show.
an investigation was carried out to study the relationship between speed ftsec and stride rate number of steps takensec
What is the probability that it will be handled by Adam? If it turns out that the problem was solved, what is the probability that it was handled by Adam?
Also give a credible set of highest posterior probability close to 95% for the parameter in question. Plot both the prior and the posterior distributions of the parameter.
Why might it not be a good idea to take the log of Hbath? Also generate a variable equal to the age of the house - how many valid observations do you have? Briefly explain why you will have exactly 6 fewer observations to use in estimating model
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