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Based on interviews with 81SARS? patients, researchers found that the mean incubation period was 5.8 days, with a standard deviation of 15.9 days. Based on this? information, construct a? 95% confidence interval for the mean incubation period of the SARS virus. Interpret the interval.
1. The lower bound is days.? (Round to two decimal places as? needed.)
2. Determine the upper? bound, rounding to two decimal places.
Find a conditional probability. If Julie is offered the federal job, what is the conditional probability that she is also offered the New Jersey job?
What is the expected number of people that leave the drive-thru with their orders filled in any given 4 minute interval?
If p(s/d)=30 % of the Democrats smoke cigars, and p(s/d')=50% of Republicans smoke cigars also. What is the probability that a cigar- smoking businessmen is a Republican?
College students are a major target for advertisements for credit cards. At a university, 65% of students surveyed said they had opened a new credit card account within the past year.
Suppose distinct values are written on each of three cards, which are then randomly given the designations A, B, and C . The values on cards A and B are then compared. What is the probability that the smaller of these values is also smaller than t..
The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters. Determine the cumulative distribution function of flange thickness.
Find appropriate summary statistics.- Write a brief description of the school's mail deliveries.- What percent of the days actually lie within one standard deviation of the mean? Comment.
multiple regression is the method of analysis thata uses sever independent variables to predict the category to which a
the random variable x the time to failure in thousands of miles driven of the signal lights on an automobile has a
If the process is in control at the present values of its parameters, what proportion of the output will be nonconforming, assuming a normal distribution of the characteristic?
If she leaves the house on the market for another month, what is the mathematical expression for the probability density function of the sales price?
Suppose that 45 percent of the population favors a certain candidate in an upcoming election. If a random sample of size 200 is chosen, find the expected value and standard deviation of the number of members of the sample that favor the candidate..
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