Question

A sample of human brain volumes (cm) is given below. Use the given data values to identify the corresponding z scores that are used for a normal quantile plot, then identify the coordinates of each point in the normal quantile plot. Construct the normal quantile plot, then determine whether the data appear to be from a population with a normal distribution 1060 1025 1410 1049 1085 950 1085 1068 List the z scores for the normal quantile plot (Round to two decimal places as needed. Use ascending order.) ldentify the coordinates of each point in the normal quantile plot (Round to two decimal places as needed. Use ascending order.) Construct the normal quantile plot 900 1500 900 1500 X Values X Values O C. 900 1500 900 1500 X Values X Values Do the data appear to come from a normally distributed population? Click to select your answer(s)

Answer 1

z= (X - mean)/sd

x	z-score
1060	-0.23175
1025	-0.48925
1410	2.343269
1049	-0.31268
1085	-0.04782
950	-1.04104
1085	-0.04782
1068	-0.17289
mean	1091.5
sd	135.9212

z-scores are z-score column rounding to 2 decimal

z-score
-0.23
-0.49
2.34
-0.31
-0.05
-1.04
-0.05
-0.17

coordinates are( x, z-score)

like (1060,-0.23) , (1025,-0.49) ,...