Answers to Worksheet 3 problems

1. mean=61.098 sd=3.963
(i) 0.0026
(ii) 0.5968
(iii) 0.9381
Normal distribution seems to fit these data adequately.

2. Normal distribution is a poor fit, but the lognormal
distribution seems to fit these data adequately.
0.0040

3. Neither normal nor lognormal distributions fit these data.