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The life of an automotive battery is normally distributed with mean 900 days and standard deviation 35 days.
The researchers once again counted people to determine whether the signs had a significant effect on behavior.
Consider your least squares regression model/equation.
You will explore the techniques for the course by examining data on the number of visits to a health care professional in Australia from 1977-78.
What is the covariance of NASDAQ index returns and S&P500 index returns?
Suppose Y1., Y2, Y3, and Y4 are independent random variables, each with den-sity function.
What is the standard error of the mean? What is the critical value of t* for a 90% confidence interval?
Based upon the raw data (NOT the Frequency Distribution), what is the mean, median and mode?
A mining company is carrying out a survey in a region of Western Australia.
Develop a correlation matrix. Do you see any problems with multicollinearity?
A certain manufacturer produces computer chips; each chip is independently acceptable with some unknown probabilityp.
A simulation of the two alternatives gives the following probability distributions of net present value:
A decision now has to be made as to how production capacity can be expanded to meet this demand. Three alternatives are available:
Make an argument about the possible relationship between the education level of respondents and that of their fathers.
You plan to develop a regression model to investigate how various factors influence academic salaries.
Your groups project will look at the various differences between naturalizations in 2012 and 2013.
Explain the rationale behind your recommended decision rulein non-technical terms.
Use these data to construct a 98% confidence interval to estimate the average per diem expense for business people traveling to Johannesburg.
Using the two scale variables, EDUC and FINRELA, and the nominal variable, RACE, test the assumptions for normality, linearity, homoscedasticity.
What are the respective probabilities that"the same horse wins all the three races" and the probability that a, b, c each wins one race?
What is the probability that the number "11" was picked given that the sum of numbers was even?
Consider the following Bayes' net on 5 binary variables: Smart, Study, Prepared, Fair, Pass.
A marbles is drawn from A, if it turns up tails, a marbles is drawn from bag B. What is the probability that a red marble is chosen?
What is the probability that a blind flooded person will draw a red marble on the second draw from the bowl without replacing the marble from the first draw?
What is the number of red faces on the second cube?