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Question: Two software companies, Micro Ware and BusiCorp, are preparing a new business package in time for a computer trade show 180 days in the future. They work independently. Micro Ware has anticipated completion time, in days, exponential (1/150). BusiCorp has time to completion, in days, exponential (1/130). What is the probability both will complete on time; that at least one will complete on time; that neither will complete on time?
The current average processing time at the drive through is 3 min. The manager wants to reduce this processing time to 2 min.
Derive the density function of the random variable Z = Y1Y2 management of a fast-food outlet is interested in the joint behavior of the random variables
Tthen calculate the 95% and 99% CIs for the proportion of all female Hispanic drivers in Boston who wear seatbelts. Why is the 99% CI wider than the 95% CI?
Calculate the test statistic for the claim in, using the following information. Sample information: A random sample of 40 repairs has a sample mean price of $132.09 and a sample standard deviation of $13.58.
Write a few sentences describing the similarities and differences in brand preferences among eighth graders in the two regions listed.
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 2004 ACT, Inc., reported that 74% of 1644 randomly selected college freshmen returned to college the next year. Estimate the national freshman-tosophomore retention rate.
What is the approximate minimum percentage of data in any frequency distribution that lies within 3 standard deviations of its mean?
A student scores 91 on the midterm exam for physics. Assume the class scores are normally distributed, with a mean of 65 and standard deviation of 15. Into what percentile does this student fall?
There are ten black, ten white, and ten blue balls in an urn. Ten of these are chosen at random without replacement. Find the probability that the first blue ball is drawn on the sixth draw.
the common stock of flavorful teas has an expected return of 19.65 percent. the return on the market is 14.5 percent
XTRA Inc. has beginning-of-the-year present values for its projected benefit obligation and market-related values for its pension plan assets.
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