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According to a survey, the mean serum cholesterol level for US adults was 197.5, with a standard deviation of 41.7. A simple random sample of 92 adults is chosen. Find the 42 percentile for the sample mean. Round to one decimal place.
the number of people living in a hypothetical large canadian city is reported by age groups in the following table.age
In what situations might you use probability as a manager to approach business-related problems? What are the advantages to using probability concepts in business decisions?
If the probability that an individual sample tests positive is 0.11, what is the probability that the mixture will test positive?
Find out whether this is enough evidence to accept or reject manager's null hypothesis, using alpha = .01. Is this test left-tailed, right-tailed or two-tailed?
QUESTION: In light of recent terrorism in Europe and the U.S., how do we know when/if supporting peace is better than going to war?
a fisherman decides to cast until he has caught a single fish. if the stream is so well stocked that on average a
Observing a sample of 35 morning customers at a convenience store, a researcher finds their average stay in the store is 3.0 minutes, with a standard deviation of 0.9 minutes
The data are also given in the musiccds dataset on the companion website.- Draw a stem-and-leaf plot of these data.- Draw a histogram of these data.- Characterize the shape of the data.
Generate a 95% confidence interval for the difference in proportions of patients with hypertension between groups. Experimental (n=100) =14%
Discuss the Radical Reconstruction as a Constitutional Revolution.
Assuming that the goal of 4% undersized tomatoes is reached, what is the probability of getting no more than 1 undersized tomato in a randomly selected sample of 20 tomatoes?
the human resources manager for a large company commissions a study in which the employment records of 500 company
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