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There are 8146 male employees studied from 1946 to 1981. Comparisons were made for causes of death between mortality rates in these workers and U.S. white male mortality rates from 1950 to 1978. There were 17 deaths from cirrhosis of those hired before 1946 and worked for 10 years or more, compared to 6.3 was expected based on U.S. mortality rates.
Perform a significance test to see if there is a relation between mortality and duration of employment in the group hired AFTER 1945 and report a p-value.
Where S, A, and R are measured in dollars per week. Vanguard's marketing director is comfortable using parameter estimates that are statistically significant at the 10% level or better.
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots.
The time it takes a student to finish a electronics test has a uniform distribution between 50 and 70 minutes.
Search the library for a scholarly journal article of a study that presents the results using correlation analysis. Summarize the article, explain how the correlation was used, and the value of correlation analysis.
Illustrate what decision should be made depended on the mini-max regret criterion. Decision based on the Mini-max criterion.
Explain the effect outliers can have on the analysis of the center of this data set. Based on the box-plot and histogram you created for problem 1, do there appear to be any outliers?
What can we conclude from these figures at a level of significance of .01?
Determine the mean and the standard deviation of the sample.
Test the hypothesis. Will you reject or not reject the null hypothesis at α = 0.05
Critically discuss the Central Limit Theorem? How large should the sample size be if the underlying distribution of the population values are:
A new product has the following profit projections, associated probabilities, and indifference probability:
The New York City Housing and Vacancy Survey showed a total of 59,324 rent-controlled housing units and 236,263 rent-stabilized units built in 194 or later.
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