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12) The time it takes to process phone orders in a small florist/gift shop is normallydistributed with a mean of 6 minutes and a standard deviation of 1.24 minutes.a. What cutoff value would separate the 2.5% of orders that take the most time toprocess?b. What cutoff value would separate the 16% of orders that take the least time toprocess?c. What cutoff values would separate the 95% of orders that are in the middle of thedistribution with respect to processing time
One measure of the risk or volatility of an individual stock is the standard deviation of the total return (capital appreciation plus dividends) over several periods of time. Al though the standard deviation is easy to compute, it does not tak..
Use these data to test the null hypothesis of no difference in the use of sick days between younger and older adults - What do your results indicate
On any given flight, an airline's goal is to fill the plane as much as possible without overbooking. If, on average, 10% of customers cancel their tickets, all independently of each other, what is the probability that a particular flight will be o..
a screening test for a newly discovered disease is being evaluated. in order to determine the effectiveness of the new
Find the test statistic and do the two-sample test for equality of proportions. Is the decision close?
The Glass Slipper restaurant has operated in a resort community
What is the difference between the CIJE and RIE parts of the ERIC system?
A survey of 791 vacationers from the United States found
What is the standard error of this difference between the two means?
In a lottery game, you pick one number from 000 to 999. If you pick one such number what is the probability that you will win the lottery?
A medical researcher wishes to estimate what proportion of babies born at a particular hospital are born by Caesarean section. In a random sample of 100 births at the hospital, 34% were Caesarean sections. Find the 95% confidence interval for ..
A business man must travel to five different destinations
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