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Question: Binge sample. After hearing of the national result that 44% of students engage in binge drinking (5 drinks at a sitting for men, 4 for women), a professor surveyed a random sample of 244 students at his college and found that 96 of them admitted to binge drinking in the past week. Should he be surprised at this result? Explain.
The following data are annualized returns on a group of 15 stocks.- Find the median, the first and third quartiles, and the 55th and 85th percentiles for these data.
Suppose that we collect data on "hours of sleep last night" from 64 students who are present at an 11:00 A.M. statistics class.- Calculate the confidence interval.
Ten automobiles were driven on a measured test track - once with standard gasoline with no additive and once with an additive supposed to increase miles per gallon (mpg). The results are given below:
Describe the role of statistics in business decision-making
The average cost of a one bedroom apartment in a town is $550 per month. What is the probability of randomly selecting a sample of 50 one bedroom apartments in this town and getting a sample mean of less then $530 if the population standard deviat..
Estimating the cost of developing software in terms of work load is difficult since it is a challenge to quantify the size and complexity of a software system.
A standard poker deck of cards contains 52 cards of which four are aces.- Find the probability that the first card is an ace and the second card is not an ace.
the rank correlation coefficient is used when one isa not interested in drawing inferences from the the studyb
The net profit of an investment is normally distributed with a mean of $10,000 and a standard deviation of $5,000. The probability that the investor's net profit will be between $12,000 and $15,000 is _____________.
suppose probability samples of size n2 are selected from 1 2 3 4 with probabilities d1.4 d2.4 d3.1 and d4.1.
What are the potential common causes of variation that would have an impact on the key processes of health-care organizations?
What is the probability that a trip will take more than an hour?- If a limousine has already been gone for 45 minutes, what is the probability that it will return within the next 20 minutes?
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