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Describe the differences between discrete and continuous (normal) probability distributions. What are some business-related examples that make use of discrete and continuous (normal) probability distributions?
What are the null and alternative hypotheses to test if the new battery has longer life than the old battery? Draw a conclusion for the hypothesis test. Make sure you state your conclusion in the context of the problem.
B reports to C's statement to A. If A asserts that B denies that C claims D is a liar, what is the probability that D spoke the truth?
Suppose that you are purchasing cases of wine and that periodically you select a test case to determine the adequacy of the bottles' seals. To do this you randomly select and test 3 bottles int he case.
In 1992, FAA conducted 86,991 pre-employment drug tests on job applicants who were to be engaged in safety and security-related jobs, and found that 1,143 were positive.
a boiler has five identical relief valves. the probability that any particular valve will open on demand is0.90.
two marbles are selected one at a time from a jar of marbles containing 10 black 10 brown 10 white and 10 green
a large university wants to estimate what proportion of their full time math students are male. if a random sample of
Can we conclude a difference in voting patterns for men vs. women? YES or NO (circle one)
Determine the range, variance, and standard deviation for the sample data.
Just as we had 3 versions of the t-test
A bond analyst is analyzing interest rates for corresponding municipal bonds issued by two different states. At α = .05, is there a difference in interest rates paid by two states?
Construct a 95% confidence interval for the population mean test score for high school seniors - difference between the fraction who preferred the incumbent and the fraction who preferred the challenger at the time of the survey.
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