Essentials of Statistics for the B...
Essentials of Statistics for the B...
Find each of the requested values for a population with a mean of
a. What is the z -score corresponding to X = 52?
b. What is the X value corresponding to z = -0.50?
c. If all of the scores in the population are transformed into z-scores, what will be the values for the mean and standard deviation for the complete set of scores?
d. What is the z-score corresponding to a sample mean of M = 42 for a sample of n = 4 scares?
e. What is the z-score corresponding to a sample mean of M = 42 for a sample of n = 16 scores?
a.
To find: The value of z when
Given info:
Score follows normal distribution with mean 50 and standard deviation 20.
Calculation:
Let
The formula for finding the z score is,
b.
To find: The value of X when
c.
To find: The value of mean and standard deviation when the values are transformed into z-score.
d.
To find: The value of z when
e.
To find: The value of z when
Chapter 8 Solutions
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