6 Answered Questions for the topic Z-Score

03/04/22

How many days did it take the patient to recover?
If the recovery time for a surgery is normally distributed with a mean of 6.1 days and a standard deviation of 2.5 days. And the z-score for a recovery time is -1.45, how many days did the patient... more
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02/16/22

Math Help - z-score
A random experiment involves drawing a sample of 12 data values from a normally distributed population. The random variable is the z-score of the maximum of the data... more
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Z Score Math Statistics

04/15/20

Given a standardized test that is normally distributed with mean of 80 and standard deviation of 12 what is P(X < 62) and What is the score of an individual that represents the 13th percentile?
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Z Score Statistics

07/22/19

what is the z score?
a health study reported that in one country systolic blood pressure readings have a mean of 121and a standard deviation of 17. a reading above 140 is considered to be high blood pressure. what is... more
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Z Score Statistics Mean

07/15/19

Statistics question

For a population with a standard deviation of σ = 4, what is the z-score corresponding to a score that is 6 points below the mean?
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10/17/14

The average woman's height is 65 in. with a stdev of 3.5 in. How many women out of 10,000 would be taller than the 70 in. tall woman?
z- Score is 1.4
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