DEVRY MATH 533 Final Exam
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MATH 533 Final Exam 4 Sets
Set 1
(TCO D) PuttingPeople2Work has a growing business placing out-of-work MBAs. They
claim they can place a client in a job in their field in less than 36 weeks. You are given the
following data from a sample.
Sample size: 100
Population standard deviation: 5
Sample mean: 34.2
Formulate a hypothesis test to evaluate the claim. (Points : 10)
Ans. b.
H0 must always have equal sign, < 36 weeks
2. (TCO B) The Republican party is interested in studying the number of republicans that
might vote in a particular congressional district. Assume that the number of voters is
binomially distributed by party affiliation (either republican or not republican). If 10
people show up at the polls, determine the following:
Binomial distribution
3. (TCO A) Company ABC had sales per month as listed below. Using the Minitab output
given, determine:
(A) Range (5 points);
(B) Median (5 points); and
(C) The range of the data that would contain 68% of the results. (5 points).
Raw data: sales/month (Millions of $)
(TCO A) Company ABC had sales per month as listed below. Using the MegaStat output
given, determine:
(A) Range (5 points)
(B) Median (5 points)
(C) The range of the data that would contain 68% of the results. (5 points)
4. (TCO C, D) Tesla Motors needs to buy axles for their new car. They are considering using
Chris Cross Manufacturing as a vendor. Tesla's requirement is that 95% of the axles are
100 cm ± 2 cm. The following data is from a test run from Chris Cross Manufacturing.
Should Tesla select them as a vendor? Explain your answer.
Descriptive statistics
Tesla Motors needs to buy axles for their new car. They are considering using Chris Cross
Manufacturing as a vendor. Tesla’s requirement is that 95% of the axles...