Question

11.1.19-T Question Help In 1940, an organization surveyed 1100 adults and asked, "Are you a total abstainer from or do you on occasion consume alcoholic beverages? Of the 1100 adults surveyed, 363 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 308 indicated that they were total abstainers. Complete parts (a) and (b) below. (a) Determine the sample proportion for each sample. The proportions of the adults who took the 1940 survey and the recent survey who were total abstainers are and respectively (Round to three decimal places as needed.)

Answer 1

In 1940 survey,

The proportion of adults who were total abstainers is

363 = = 0.33 1100

In recent survey,

The proportion of adults who were total abstainers is $\hat{p} = \frac{308}{1100} = 0.28$

Hence,

The proportion of adults who took the 1940 survey and the recent survey who were total abstainers are 0.33 and 0.28 respectively.