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Given the results of given Exercise, evaluate the claim made by the public relations agency.
Exercise A public relations agency tells its client that 80% of the residents in a 50-mile radius believe the company is "an industry leader." Skeptical, the company commissions a survey in which just 320 of the 500 persons interviewed felt the company was an industry leader.
If the public relations agency's claim is correct, what is the probability that interviews with 500 people would yield 320 or fewer who felt the company was an industry leader?
a professional gambler claims that he has loaded a die so that the outcome of 123456 have corresponding probabilities
Describe what type of control chart you can use and how do you calculate the control limits (provide formula) to check if the calculate the control limits in this organization is in control.
The number of hours a light bulb burns before failing varies from bulb to bulb. The distribution of burnout times is strongly skewed to the right. The central limit theorem says that
in any given situation if the level of confidence and the standard deviation are kept constant how much would you need
Determine the appropriate descriptive statistics. For normally distributed data use the mean and standard deviation. For significantly skewed data use the median and interquartile range.
Do you think it is realistic? Why? Why not? Use scholarly research to support how media portrayals of crime are not always what they seem.
find the p-value based on a standard normal distribution for the standardized test statistic and provided alternative
The population standard deviation is unknown. If you assume that the population mean is 19, find the P-value corresponding to the hypothesis that the average cutthroat trout length is different from 19 (i.e. two-tail test).
After gaining an understanding from the video on secondary data, provide at least two public websites where we can get data for research. Here's one example. We can pull the unemployment rate for each state from the bureau of labor statistics. www..
a. Determine the probability distribution for the number of Hondas in a sample of three cars chosen from the top nine. b. What is the likelihood that in the sample of three at least one Honda is included?
What is meant by illusionary correlations? Why is it so difficult for individuals to disprove their beliefs in correlations that are actually false?
What is the purpose of a post-hoc test with analysis of variance? What is probabilistic equivalence? Why is it important?
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