Mathematics, 06.05.2020 02:25, ethanyayger
The population mean and standard deviation are given below. Find the indicated probability and determine whether a sample mean in the given range below would be considered unusual. If convenient, use technology to find the probability.
For a sample of n=40, find the probability of a sample mean being less than 12,752 or greater than 12,755 when μ=12, 752 and σ=1.2.
For the given sample, the probability of a sample mean being less than 12, 752 or greater than 12,755 is:
Would the given sample mean be considered unusual?
a. The sample mean would not be considered unusual because there is a probability less than 0.05 of the sample mean being within this range.
b. The sample mean would be considered unusual because there is a probability less than 0.05 of the sample mean being within this range.
c. The sample mean would not be considered unusual because there is a probability greater than 0.05 of the sample mean being within this range.
d. The sample mean would be considered unusual because there is a probability greater than 0.05 of the sample mean being within this range.
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