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Question: When the economic situation is "high," a certain economic indicator rises with probability 0.6. When the economic situation is "medium," the economic indicator rises with probability 0.3. When the economic situation is "low," the indicator rises with probability 0.1. The economy is high 15% of the time, it is medium 70% of the time, and it is low 15% of the time. Given that the indicator has just gone up, what is the probability that the economic situation is high?
A logistic regression model was used to assess the association between CVD and obesity. P is defined to be the probability that the people have CVD.
Complete a correlation on the data (StatTools: Summary Statistics/Correlation and Covariance/Correlation/Entries below the diagonal only).
JBGHI demands a sample large enough to ensure an error of ± 2% with 90% confidence. What is the necessary sample size?
Use differential to approximate square root of 16.3
Why is sampling strategy important? Please provide one or two examples from your work or past experience?
Perform the chisquare test for a uniform distribution. At α = .05, does this sample contradict the assumption that sales are the same for each beverage?
Suppose a random sample of 25 swatches are selected. What is the probability that the mean of the sample is less than 235 pounds per square inch.
m. cottelerr electronics supplies microcomputer circuitry to a company that incorporates microprocessors into
The data collected was for each car for each type of fuel. Performance was measured in miles per gallon. Perform an ANOVA test and state the results.
They can expect a 5% increase in salary for the following year, which is the same that they received in each of the last 4 years. Find the ratio of the pension income for retirement in 1 year to that for retirement now.
Test at .01 level of significance if mean number of number of calories for Brand A 16 oz. yogurt cups is greater than mean calories for Brand B 16 oz. yogurt cups.
an automobile manufacturer would like to know what proportion of its customers are dissatisfied with the service
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