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Estimate a multiple regression model using revenue as your dependent variable. For independent variables, include population, average income, screens, theatre age, and dummy variables for mall and strip mall.
What contingency table test is used to see if there is a difference in the frequency distribution for two different groups?
In a mobile phone shop on a Sunday morning, out of n = 77 customers x = 19 buy a mobile phone. What is the 95% confidence interval for the proportion of customers buying a mobile phone?
Explain these results to a person who understands the t test for a single sample but knows nothing about the t test for independent means.
Suppose a company owns three cars that get 20 miles per gallon, two cars that get 22 miles per gallon and one car that gets 24 miles per gallon. Would the mean miles per gallon be 22?
Why is the F distribution important? How do you determine if a significant difference exists among the groups in ANOVA? How do you determine differences between the groups in ANOVA?
What is the underlying variable that indirectly correlates these 2 variables? What other variables could you identify as having an indirect relationship?
Finding the probability value for the given data using normal approximation
Assume we interested in relationship between the age of individual, as measured by visits. Suppose after selecting 15 members the observation:
Plot Kaplan-Meier Survival curve estimates along with true survival curve for n=25,100,1000
Recent medical research demonstrated there is a strong (r=.60) correlation between the excessive weight and incidences of breast cancer. How can we interpret this statement?
At the 5% level of significance, does this result support the conjecture?
Survey of 16 tax returns reports families with incomes between $75,000 and 100,000 have on average $8,562 in Standard Deductions with the standard deviation of $1,800.
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