Question
In: Statistics and Probability
In 1940, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or...
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, 396 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 363 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.)
Solutions
Expert Solution
SOLUTION:
From given data,
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, 396 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 363 indicated that they were total abstainers.
= 396
= 363
= 1100
= 1100
(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.)
Sample proportion , for 1940 survey
=
/
=
396 / 1100
=
0.36
Sample proportion , for recent survey
=
/
=
363 / 1100
=
0.33
The proportions of the adults who took the 1940 survey and the recent survey who were total abstainers are 0.36 and 0.33 respectively.
orchestra answered 1 year agoRelated Solutions
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