Question
1. In a normal distribution, determine the proportion of cases that fall in the following ranges (report your answers to four decimal places, as given
1. In a normal distribution, determine the proportion of cases that fall in the following ranges (report your answers to four decimal places, as given in Table A in Appendix C of your textbook). For each problem, first sketch the normal curve and shade in the area corresponding to the proportion you are computing.
a.above z = +2.00
b. above z = -1.50
c.below z = -1.82
d. below z = +3.08
e. between z = -1.00 and z = +1.00
f.between z = +.75 and z = +1.25
g.between z = -.75 and z = -1.252.X 13 891011
a. Based on the above data, calculate by hand (using a calculator is ok) the mean and the estimate of the population standard deviation (i.e., use the divisor n - 1). Show work.
b. Transform by hand (using a calculator is ok) the X scores to Z scores. Show work.
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