Question
1.Z-scores are also known as _____________ . a.standard deviations b.means c.error d.ranges 2.What happens to the 'mean' of an x-distribution when you standardize the distribution?
1.Z-scores are also known as _____________ .
a.standard deviations
b.means
c.error
d.ranges
2.What happens to the 'mean' of an x-distribution when you standardize the distribution?
a.The 'mean' becomes positive.
b.The 'mean' becomes a variation.
c.The 'mean' becomes zero.
d.The 'mean' becomes negative.
3.Assume that the blood pressure data is normally distributed with a mean of 70.2 and a standard deviation of 11.2.Find the probability that a woman has a blood pressure level between 60 and 80.(n=1)
4.Assume that the blood pressure data is normally distributed with a mean of 70.2 and a standard deviation of 11.2.If 16 women are randomly selected, find the probability that the their mean blood pressure levels areless than75.
5.Assume that the blood pressure data is normally distributed with a mean of 70.2 and a standard deviation of 11.2.If 16 women are randomly selected, find the probability that the their mean blood pressure levels aregreater than75.
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