In 1941, an organization surveyed 1100 adults and asked, “Are you a total abstainer from, or do you on occasion consume, alcoholic beverages?” Of the 1100adults surveyed, 429 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 407 indicated that they were total abstainers.
In 1941, an organization surveyed 1100 adults and asked, “Are you a total abstainer from, or do you on occasion consume, alcoholic beverages?” Of the 1100adults surveyed, 429 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 407 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 1941 survey and the recent survey who were total abstainers are 0.39 and 0.37 respectively.
(b) Has the proportion of adults who totally abstain from alcohol changed? Use the a=0.01 level of significance.
First verify the model requirements. Select all that apply.
All of the following answers I selected are highlighter in Bold Black Print and they are already correct.The answer is A,B,and F
A. The sample size is less than 5% of the population size for each sample.
B. n1 p1 (1-p1)>10 and n2 p2 (1-p2) >10
C.The samples are dependent.
D.The sample size is more than 5% of the population size for each sample.
E.The data come from a population that is normally distributed.
F.The samples are independent.
The following question is what I am struggling with. Can you help me figure out what goes in the blank boxes near the very bottom of this question?
H0: p1…BLANK BOX p2 and H1: p1…BLANK BOX p2
Identify the null and alternative hypotheses for this test. Let p1 represent the population proportion of 1941 adults who were total abstainers and p2 represent the population proportion of recent adults who were total abstainers.
Determine the null and alternative hypotheses.
H0: p1=p2
H1:p1≠ p2