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1) The alternative hypothesis is a < You want to test decide whether to reject Ho if the level of significance is a = 0.1. What is the Zc value that defines the boundary of the reject region? 2) The alternative hypothesis is a > You want to test decide whether to reject Ho if the level of significance is a = 0.05. What is the Zc value that defines the boundary of the reject region?
If a mosquito lands, it will bite you with probability 0.4, and it will never bother you with probability 0.6, independently of other mosquitoes. What is the expected time between successive bites?
What percentage of items will weigh between 6.4 and 8.9 ounces?
Use a t test to test the claim about the population mean u at the given level of signifiance a using the given sample statistics. For each claim, assume the population is normally distributed.
What sample size would be needed for an error of ± 1.5 with 98 percent confidence? (Data are from a project by MBA student Wendy Blomquist.)
Population of following N=5 scores: 0,6,4,3, and 12. Calculate μ and σ for the population. Determine the z-score for each score in the population.
Describe ways in which the use of MS Excel as a tool for interpreting data can be used by a manager of an organization.
Studies have shown that humans complete a 1 mile run in an average of 12.2 minutes. There is a separate group of 30 who complete a 1 mile run with an average of 8.67 minutes with a standard deviation of 0.33 minutes.
construct a 90% confidence interval for the true mean weight. what sample size would be necessary to estimate the true weight with an error +/- 0.03 grams with 90% confidence?
Very satisfied customers give the XYZ-Box video game system a rating that is at least 42. In the context of this situation, interpret making a Type I error; interpret making a Type II error.
Mauricio Cruz, a wine merchant for Cruz's Spirits Emporium, wants to determine if the average price of imported wine is less than the average price of domestic wine.
What are the similarities and dissimilarities between a chi-square analysis and a correlation analysis? Suppose you conducted a study to see if there was an association between political party affiliation and whether or not someone voted.
It falls into the region of alternative is accepted greater than .95
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