The range rule tells us that the standard deviation of a sample can be approximated by the formula S = (Maximum - Minimum)/4. Ive been given the following statistical parameters from a previous study: = 85, range of observations: highest = 136, lowest = 28

a.Determine ?

b.Using the table below reconstruct the SND for the sample

Z X

-3 __

-2 __

-1 __

0 __

1 __

2 __

3 __

c.Above what percentile would the value X = 63 to be located?

d.What X value would be at 1.3 Z score position on the SND

Please provide a brief explanation for understanding along with the solution. Thanks