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Question: Suppose 6 of the 10 cups of coffee in the experiment described in Exercise are regular and the remaining 4 are decaf. How do the p-values change? Which design, 5 + 5 or 6 + 4, is preferred?
Exercise: Suppose 10 cups of coffee, 5 decaf and 5 regular, are served according to Fisher's design. Find the p-value for Fisher's exact test when one cup of regular coffee is incorrectly categorized. What is the p-value when no mistakes are made? What about two mistakes?
In the definition of Wilcoxon's statistic, let W1 be the sum of the ranks of those observations of the sample that are positive and let W2 be the sum of the ranks of those observations that are negative. Then W = W1 - W2.
You are given the sample mean and the sample standard deviation. use this information to construct the 90% and 95% confidence intervals for the population mean. Which interval is wider?
Find the SAT equivalent. Chloe scores 30 on the ACT. Assuming that both tests measure the same thing, what score on the SAT is equivalent to Chloe's ACT score?
Commercials for chewing gum make claims about how long the flavor will last. In fact, some commercials claim that the flavor lasts too long.
Look ahead at the scenario described in. Obtain a close estimate of the expected cost of insurance coverage for the corporation's employees by performing 500 iterations of a simulation of an employee's health insurance experience on a spreadsheet.
Determine the total variance between the planned and actual budgets for Surgical Volume. Is the variance favorable or unfavorable?
State one referenced hypothesis including the three variables (FA as an IV, age as the covariate and RS as the DV)
A health researcher is interested in determining whether or not the speed at which people walk is related to their cholesterol levels. He picks 100 adult volunteers at random, checks their cholesterol levels, and then times each one while they wal..
Do you agree that if two events are mutually exclusive then these two events will be independent and provide one business-related example each, with explanation, for mutually exclusive and independent events
Show the dependency diagram for each of the normal forms. Do not go beyond the 3rd normal form - Show the dependency diagram for each of the normal forms. Do not go beyond the 3rd normal form.
according to the coffee research organization the typical american coffee drinker consumes an average of 3.1 cups per
Argue that the smallest observed value, X(1), as well as the the lower and upper quartiles, satisfy the definition of a measure of location.
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