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Two tools that are often used in this process are the contingency table and the decision tree. What are these tools and how to they help us to make decisions under uncertainty when we are dealing with probabilities? Please offer an example of how you may use these tools to help make a business decision.
Take a confidence interval for the difference in the average of renting between the first andthird hotel.
Is there a relationship between the opinion and the location of the resident at a level of significance of 0.05?
Compute the population attributable risk for smoking and lung cancer.
Find the percentage of the total variation that cant explained by the linear relationship between the two variable.
To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below.
Give three logically possible directions of casualty, indicating for each direction whether it is a reasonable explanation for the correlation in light of the variables involved (and why).
Would Kruskal-Wallis be the suitable statistical procedure to test this Research Question (RQ)? Describe your answer. When would you use Chi-Square test rather than One-Way Anova?
This result prompts a test administrator to claim that standard deviation for eighth graders on examination is less than 29.At a = 0.10, is there sufficient evidence to support administrator's claim?
The MacBurger restaurant chain claims that the waiting time of customers for service is normally distributed,
The sample data are summarized by the statistics n = 27, x = 4.6 years, s- 1.9 years.
Would you conclude that your data set is approximately normal? If so, what percentage of your data values lie:
What sample size should be chosen so that there is 0.95 probability of estimating the mean monthly income in $150 or less?
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