Mathematics, 17.07.2019 10:30 alinegonzalez0027
Apopulation has a mean of 300 and a standard deviation of 90. suppose a sample of size 100 is selected and x is used to estimate μ. a. what is the probability that the sample mean will be within +/- 5 of the population mean (to 4 decimals)? b. what is the probability that the sample mean will be within +/- 14 of the population mean (to 4 decimals)?
Answers: 1
, so we then find P(-0.56 < z < 0.56) from z-tables, and this is equivalent to 0.4246.
, so we find P(-1.56 < z < 1.56) from z-tables, and this value is equivalent to 0.8812.
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Apopulation has a mean of 300 and a standard deviation of 90. suppose a sample of size 100 is select...
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