Multiple Choice
Suppose the time it takes for a purchasing agent to complete an online ordering process is normally distributed with a mean of 8 minutes and a standard deviation of 2 minutes.Suppose a random sample of 25 ordering processes is selected.What is the probability that the sample mean will be less than 7.5 minutes?
A) 0.3944
B) 0.1056
C) 0.2114
D) 0.4013
E) 0.8944
Correct Answer:
Verified
Correct Answer:
Verified
Q185: In listing a property, real estate agencies
Q186: After the financial crisis of 2007/2008, the
Q187: Below is a histogram of prices for
Q188: Suppose a sample of 60 business majors
Q189: College students were given three choices of
Q191: In a clinical trial, 780 participants suffering
Q192: IT staff for a large corporation has
Q193: A recent survey of online shoppers asked
Q194: Absorption rates into the body are important
Q195: A farmer has increased his wheat production