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