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Q1) Four accounting majors, 2 economics majors, and 3 marketing majors have interviewed for 5 different positions with large company. Determine number of several ways that five of these could be hired.
Q2) Instead of 5 positions, company has decided that only 3 positions, with no restriction on college majors, should be filled ______.
a) 24 ways
b) 2520 ways
c) 6 ways
d) 504 ways
Q3) A die is rolled 5 times and number of twos which come up is tallied. Determine the probability of getting the indicated result. 2 comes up zero times.
a) .0001
b) .161
c) .424
d) .402
Q4) Determine the mean for list of numbers. 6, 5, 9, 4, 14, 9 (Round to the nearest tenth)
a) 6.3
b) 9.4
c) 8.3
d) 7.8
Assume the arrival of these emails i3 approximated by the Poisson distribution.
A bank official reported the results of a regression analysis designed to predict the bank's charges (y), measured in dollars per month, for services rendered to local companies.
A sample of 100 observations has a mean of 2.99 and a standard deviation s equal to 0.5 Conduct the following test of hypotheses about the corresponding population mean at a level of significance of α = 0.2
The CEO of the business has nothing better to do wheras measured the temperatures of 26 department managers 1 to 4 times every day to get a total of 123 measurements.
A human factors psychologist studied three computer keyboard designs.
Obtain a test statistic and p -value. Interpret the results at α = .01.
For each lettered part, a through c, examine the two given sets of numbers. Without doing any calculations, decide which set has the larger standard deviation and explain why. Then check by finding the standard deviation by hand .
At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?
What is the probability that at least one of the new books is a commercial success?
Suppose the probability of a boy being born is the same as the probability of a girl being born. Find the probability that a family with three children will have two boys and one girl.
To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below.
Let be the average of the pay you receive for the first and second week. Find the sampling distribution
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