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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
you bought a new set of tires from the manufacturer who just announced a recall because 12 of those tires are
A business journal investigation of the performance and timing of corporate acquisitions discovered that in a random sample of 2,863 firms, 848 announced one or more acquisitions during the year 2000.
Your supervisor has asked you to conduct a survey about consumers' buying habits. For this task, you surveyed 100 men and 100 women at a local shopping mall.
Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. Here are data on the "penetrability" of the same type of soil at 2 levels of compression.
A contingency table has 5 rows and 4 columns. How many degrees of freedom are there?
If an auditor takes a random sample of 36 accounts what is the probability that the mean balance will be less than 45?
sixty-four measurements are made on the speed of light. these average out to 300.007 and the sd is 10 the units being
Is there a significant difference in sales dollars of hats between the west side and east side stores at the 5 percent level of significance? (a) State the hypotheses. (b) State the decision rule and sketch it. (c) Find the test statistic and stat..
consider taking a random sample of size 3 from a population of persons who smoke and recording how many of them if any
Estimate the IQR of the tires tread life - If the dealer is only willing to give a refund to no more 2% of the customers, for what mileage can he guarantee these tires to last?
A report on the U.S. economy indicates that 28% of Americans have experienced difficulty in making mortgage payments. A news organization randomly sampled 400 Americans from 10 cities named the "fastest dying cities in the U.S."
an urn contains 7 red marbles and 3 white marbles. three marbles are drawn from the urn one after the other. find the
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