What is the sample standard deviation

Reference no: EM13900216

1. A score that is 9 points above the mean corresponds to a z-score of z= 1.50. What is the population standard deviation?

2. For a population with a standard deviation of s = 12, a score of X= 44 corresponds to z = 20.50. What is the population mean?

3. For a sample with a standard deviation of s =8, a score of X = 65 corresponds to z = 1.50. What is the sample mean?

4. For a sample with a mean of M =51, a score of X =59 corresponds to z = 2.00. What is the sample standard deviation?

Reference no: EM13900216

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