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Suppose you were given a three-question multiple -choice quiz in which each question had four optional answers
a) What is the probability of getting a perfect score if you were forced to guess at each question?
b) Suppose it takes at least two correct answers out of three to pass the test. What is the probability of passing if you are forced to guess at each question? What does this indicate about studying for such an exam.
c) Suppose through some late-night studying you are able to correctly eliminate two answers on each question. Now answer parts a and b.
A process has a capability index of 0.40. This index is interpreted to mean that the process is:
Develop a scatter diagram for the data and write a brief summary.
Convert each of the following z intervals to x intervals.
Obtain a test statistic and p -value. Interpret the results at α = .01.
A class has 13 women and 18 men. If student if selected randomly, determine the probability student is a woman?
Compute the minimum sample size required assuming that no prior information is avaiable?
Use the marginal probabilities of school quality, school cost or convenience, and other to comment on the most important reason for choosing a school.
Perform the appropriate test for a difference in mean blood glucose and report the p-value for the two-tailed test of significance, assuming that the variances are equal.
Assume you want to repeat the FDA experiment to achieve an estimation of the mean μ of the amount of caffeine content of a cup of coffee.
Describe the factors that might cause variation in weight of Tootsie Rolls during manufacture.
What is the probability that a particular driver has two speeding violations.
Make a point estimate and a 95% confidence interval estimate.
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