A survey of the members of a large professional engineeringsociety is conducted to determine their views on proposed
changes to an ASTM measurement standard. Overall 80% of theentire membership favor the proposed changes.
(a) If possible, describe the center, dispersion, and shape ofthe sampling distribution of the proportion of engineers for
samples of size 20 who favor the proposed changes. Explain youranswer including which of these three aspects of
distribution you can & cannot describe and why.
(b) If possible, describe the center, dispersion, and shape ofthe sampling distribution of the proportion of engineers for
samples of size 50 who favor the proposed changes. Explain youranswer including which of these three aspects of
distribution you can & cannot describe and why.
