Determine mean and standard deviation for population

Assignment Help Basic Statistics

Reference no: EM13111950

1. For population with µ = 100 and σ = 10
A) Determine z- score for each of the following X values: X = 105 X = 120 X = 130 X = 90 X = 85 X = 60.

B) Determine the score ( X value) that corresponds to each of the following z scores: z = -1.00 z = -0.50 z = 2.00 z =0.70 z = 1.50 z = -1.50

2. For the population with mean of M=85 a score of x=90 corresponds to z= 0.50. Determine the sample standard deviation?

3. In the population of exam scores score of X=88 corresponds to z=+2.00 and score of X=79 and corresponds to z=-1.00. Determine mean and standard deviation for the population. Draw the distribution and locate two scores on the sketch.

Reference no: EM13111950

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