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The Helsinki heart study asked whether the anticholesterol drug gemfibrozil reduces heart attacks. They gave the drug to 2000 men aged 40-55 and a placebo to another 2000. The probability of a heart attack for men this age in a 5-year period is 0.04. Define the random variable X to be then number of heart attacks in the drug group. Define p to be the proportion of heart attacks in the drug group.
a. Use the Binomial Calculator to find the probability that the number of heart attacks in the drug group is at most 56
b. Use the Binomial Calculator to find the probability that the sample proportion of heart attacks in the drug group is at most 2.8%.
c. Use the Normal Approximation to the binomial distribution to find the same probability.
d. How do these results compare?
A straight flush (all cards in the same suit with consecutive face values, except the royal flush which contains 10, jack, queen, king, and ace.
An MRP planner has prepared the following table showing product structure, lead times (orders are lot-for-lot), and quantities on hand:
Construct a contingency table for the relationship between degree of anger and the incidence of heart disease.- Among those with no anger symptoms, what percentage had coronary heart disease?
There is a proposal before our Congress to build a so-called fourth-generation nuclear reactor at the Idaho National Laboratory.
the correct size of a nickel is 21.21 millimeters. based on that the data can be summarized into the following table
you have determined that your cutoff value at a level a0.05 is 1.645 when testing whether the mean of a population is
What are confounds? Give an example of a design that has three confounds. Describe three ways to alter the design to address these confounds and explain the advantages and disadvantages of each.
Will a tutor please give me an example of a problem on Loan or Credit cards or mortgage payments and solve it with the math.
Find a rough estimate (by using the scatterplot) of median score for a seventh-grade student who had a median score of 8 in third grade.
"Strategizing for the future" is management lingo for sessions that help managers make better decisions. Managers who deliver the best stock performance.
What is the probability that the combination consists of only even numbers?
One prominent physician claims that 70% of chose with lung cancer are heavy smokers. If his assertion is correct. find the probability that more than half are heavy smokers.
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