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Zagat's publishes restaurant ratings for various locations in the U.S. The Excel file Restaurants contains the Zagat rating for food, décor, service, and the cost per person for a sample of 100 restaurants located in NYC and in a suburb of NYC. Develop a regression model to predict the price per person, based on a variable that represents the sum of the ratings for food, décor, and service.
a) Assuming a linear cost relationship, what are the regression coefficients, b0 and b1?
b) Predict the cost per person for a restaurant with a summated rating of 50.
c) What is the coefficient of determination, and wat is its meaning?
Decision rule which chooses alternative associated with smallest maximum opportunity loss is?
How does your sample compare to this theoretical distribution of sample means and what are the mean, variance, and standard deviation of the observations in your sample?
A random-effects ANOVA refers to the analysis where the levels included in the study represent a random sample of all levels that exist.
What is the 95% confidence interval estimate for the difference between the mean reflectivity reading for Paint A and Paint B? Please complete the blank: "we can be 95% confident that the true difference between the actual means is?
A game involving a pair of dice pays you 3 with probability 17/36, costs you 2 with probability 14/36, and costs you 4 with probability 5/36. What is your probability of losing money in one play of the game?
Create a flow diagram for entire process. Include flow paths for students (solid lines) and prescriptions (dashed lines).
The following is a time series data set. Run a time-series analysis for projections of April 2009 in the Healthcare industry of Nashville.
How should he go about taking samples to gather data for testing the hypotheses?
Access the University of Phoenix Material, "Data for Inferential Practice Problems." Use the Excel® Analysis ToolPak? when necessary for the following:
The average weight of 40 randomly selected minivans was 4150 pounds. The standard deviation was 480 pounds. Find the 99% confidence interval of the true weight of the minivans.
Find the 90% confidence interval for the variance and standard deviation for the time it takes a state police inspector to check a truck for safety if a sample of 27 trucks has a standard deviation of 6.8 minutes.
Of the 900 employees, 590 had college degrees, 120 were single, and 80 were single college graduates. Find the probability that an employee of the company is married and has a college degree.
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