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A suburban specialty restaurant has developed a single drive-thru window. Customers order, pay, and pick up their food at the same window. Arrivals follow a Poisson distribution while service times follow an exponential distribution. If the average number of arrivals is 6 per hour and the service rate is 2 every 15 minutes, what proportion of the time is the server busy?
Analyze the data to make conclusions. Perform test(s), interaction plot and post hoc multiple comparisons if needed.
question refer to the article entitled 21st birthday from the penn state pulse january 2001. located in the library
In 1978, the CPI for Canada was 43.6, but in 1988, the CPI was 84.8. What was the geometric mean annual increase for the period?
question 1 an accelerated life test on a large number of batteries revealed that the mean life for a particular use
1.a study was conducted to explore the relation between alcohol consumption and hypertension. 7400 nurses were surveyed
A certain airplane has 2 independent alternators to provide electrical power. The probability that a given alternator will fail on a 1 hour flight is 0.02. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the othe..
A simple random sample of 36 bulbs yields a mean lifetime of 504 hours. Construct and interpret a 99% confidence interval for the mean lifetime of all such bulbs.
You randomly select 40 can and carefully measure the contents. The sample mean of the cans is 127.9 ounces. Does the machine need to be reset?
part i statistical measures statistics is a very powerful topic that is used on a daily basis in many situations. for
the equation for a regression line predicting the numbers of hours of tv watched by children y from the number of hours
a sample proportion is calculated from a sample size of 201. how large of a sample would we need to decrease the
What is the probability that none of the lines experiences a surface finish problem in 40 hours of operation. What is the probability that all three lines experience a surface finish problem between 20 and 40 hours of operation.
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