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In chances:Risks and Odds in Everybody Life,James Burke claims that 70% of all single man would welcome a woman taking the initiative in asking for a date. A random sample of 20 single men were asked if they would welcome a woman taking the initiative in asking for a date. What is the probability that at least 18 of the men will say yes.
What should the cut-off score be for the interviews? (Round to nearest whole number).
Mean 1400 grams and standard deviation 20 grams. Find positive numbers a and b such that Y=a+bX has a mean 0 and standard deviation.
A recent survey of frozen convenience meals found a correlation of r=0.768 between calories and fat content in the sampled meals.
A sociologist wants to determine if the life expectancy of people in Africa is less than the life expectancy of people in Asia.
When we carry out a goodness of fit chi-square test, the expected frequencies are based on the alternative hypothesis
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
what is the equation that predicts mortgage amount from interest rate? Compute the slope of the straight line. compute the y-intercept of the straight line.
Create ADM/PERT diagram. Determine the critical path.
Mr.Smith works on a temporary basis. The mean length of each job he gets is three months. If the amount of time he spends between jobs is exponentially distributed with distributed with mean 2, then at what rate does Mr. Smith get new job?
PiggyBank has narrowed its options down to two incentive plans: The bank doesn't know whether consumers would shop online more than at clothing stores.
Find the probability that a randomly selected x-value from the distribution is in the given interval. Between 29 and 37.
A researcher conductued a study of the access speed of 35 hard drives and concluded that his maximum error of estimate was 35. If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he ..
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