BUAL 2650 FINAL EXAM || WITH 100% ERROR-FREE SOLUTIONS.

BUAL 2650 FINAL EXAM || WITH 100% ERROR-FREE SOLUTIONS.
Question : The mean life of a pair of shoes is 40 months with a
standard deviation of 8 months. If the life of the shoes is
normally distributed, how many pairs of shoes out of one
million will need replacement before 36 months?
Correct answer: 308,537
Question : A standard normal distribution has a mean of_______
and standard deviation of _________.
Correct answer: Zero, One
Question : The area under the normal curve between z=0 and
z=1 is_________ the area under the normal curve between z=1
and z=2.
Correct answer: greater than
Question : A new company is in the process of evaluating its
customer service. The company offers two types of sales: (1)
internet sales and (2) store sales. The marketing research
manager believes that the internet sales are more than 10 percent
higher than store sales. The null hypothesis would be?
2 | Page
Correct answer: P (internet)

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