Question

Im 1948, an organization surveyed 100 adults and asked “Are you a total abstainer from, or do you on occasion consume, alcoholic beverages?” Of the 1100 adults surveyed, 396 indicated that they were total abstainers. In a recent survey, the same question was asked if 1100 adults and 319 indicated that they were toral abstainers. Complete parts A-D, though I only have A’s question.

(a) Determine the sample proportion for each sample.

The proportions of the adults who took the 1948 survey and the recent survey who were total abstainers are ? and ? , respectively.

round three decimal places as needed.

Answer 1

Let , : Proportion of  of the adults who took the 1948 survey who were total abstainers .

and : Proportion of  of the adults who took the 1948 survey who were total abstainers .

Therefore ,

and ,

Therefore ,

The proportions of the adults who took the 1948 survey and the recent survey who were total abstainers are 0.36 and 0.29 respectively.

( Where is the part  A-D ??)