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Mathematics, 06.03.2020 22:05, dondre54
A large retirement community has a current population more than 5,000 residents. The distribution of ages of all residents is left skewed with a mean of 65.5 years and a standard deviation of 12.5 year. Suppose you are to conduct a survey and take a random sample of 100 residents of the community. Which of the following corretly describe how to find the probability that you obtain a sample mean age that is younger than 64 years? a) Find the area to the left of z = -0.12 under a standard normal curve. b) Find the area to the right of z = -1.2 under a standard normal curve. c) Find the area to the left of z = -1.2 under a standard normal curve. d) Find the area to the right of z = -0.12 under a standard normal curve. e) None of above
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A large retirement community has a current population more than 5,000 residents. The distribution of...
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