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An investigator is interested in the posibility of merging the capabilities of television and the Internet. A random sample of n = 50Internet users yielded that the mean amount f time spent watching television per week was 11.5 hours and that the standard deviation was 3.5 hours. Estimate the population mean time that the Internet users spend watching television and place a bound on the error of estimation.
You are having a meeting with the employees of Financial Outsourcing, Inc. During the meeting, you were asked several questions. Give your opinion to the questions.
Discuss the issue of statistical power in non-parametric tests (as compared to their parametric counterparts). Which type tends to be more powerful? Why?
Find that a random sample of 14 similar cars has a mean of price of $19,850 with a standard deviation of $1084. Is there enough evidence to reject the salesman's claim at "alpha" = 0.05?
The company has evidence that its line produces %0.9 of noncorforming items. What is the probability that an item selected for inspection is classified as defective?
Extreme value or is it a fairly typical sample mean? For a sample of n=36 scores, would a sample mean of M=55 be considered an extreme value or is it is fairly typical sample mean?
Compare the two forecasts computed in (a) and (b), using MAD. Which one should the dealer use for January of the next year?
Identify whether it is an experiment or an observation study/survey. If experiment: identify experimental design, experimental units, factors & levels, response variable, and blocks (if any).
How to drive the car is 9.5 hours with a standard deviation of 1.5 hours. Test the managerâ??s claim at the 1% significance level. Determine the critical values of the test statistic.
The researchers planned to use simple linear regression to see if the age at which a baby was first able to crawl could be predicted from the average outdoor temperature six months after each baby's birthdate.
Determine the dimensions of resulting exchanger?
The width of a rectangular gate is 2 meters (m) larger than its height. The diagonal brace measures sqrt 6 m. Find the width and height.
Critically evaluate the article by examining the worthiness of the survey. In your discussion, cover the following items: purpose of survey, why was it conducted, for who was it conducted, and was it based on a probability or nonprobability sample..
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