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 1100 adults surveyed, 429 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 374 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 . 39.39 and . 34.34, respectively. (Round to three decimal places as needed.) (b) Has the proportion of adults who totally abstain from alcohol changed? Use the α=0.05 level of significance. First verify the model requirements. Select all that apply. A. The sample size is more than 5% of the population size for each sample. B. The samples are dependent. C. n1p11−p1≥10 and n2p21−p2≥10 Your answer is correct. D. The data come from a population that is normally distributed. E. The sample size is less than 5% of the population size for each sample. Your answer is correct. F. The samples are independent. Your answer is correct. 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 equals= p2 H1: p1 not equals≠ p2 Find the test statistic for this hypothesis test. 2.432.43 (Round to two decimal places as needed.) Determine the P-value for this hypothesis test. 0.0150.015 (Round to three decimal places as needed.) Interpret the P-value. If the population proportions are ▼ one would expect a sample difference proportion ▼ the one observed in about nothing out of 100 repetitions of this experiment. (Round to the nearest integer as needed.)
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 1100 adults surveyed, 429 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 374 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 . 39.39 and . 34.34, respectively. (Round to three decimal places as needed.) (b) Has the proportion of adults who totally abstain from alcohol changed? Use the α=0.05 level of significance. First verify the model requirements. Select all that apply. A. The sample size is more than 5% of the population size for each sample. B. The samples are dependent. C. n1p11−p1≥10 and n2p21−p2≥10 Your answer is correct. D. The data come from a population that is normally distributed. E. The sample size is less than 5% of the population size for each sample. Your answer is correct. F. The samples are independent. Your answer is correct. 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 equals= p2 H1: p1 not equals≠ p2 Find the test statistic for this hypothesis test. 2.432.43 (Round to two decimal places as needed.) Determine the P-value for this hypothesis test. 0.0150.015 (Round to three decimal places as needed.) Interpret the P-value. If the population proportions are ▼ one would expect a sample difference proportion ▼ the one observed in about nothing out of 100 repetitions of this experiment. (Round to the nearest integer as needed.)
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 6E
Related questions
Question
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
1100
adults surveyed,
429
indicated that they were total abstainers. In a recent survey, the same question was asked of
1100
adults and
374
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
. 39.39
and
. 34.34,
respectively.(Round to three decimal places as needed.)
(b) Has the proportion of adults who totally abstain from alcohol changed? Use the
α=0.05
level of significance.First verify the model requirements. Select all that apply.
The sample size is more than 5% of the population size for each sample.
The samples are dependent.
n1p11−p1≥10
and n2p21−p2≥10The data come from a population that is normally distributed.
The sample size is less than 5% of the population size for each sample.
The samples are independent.
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
equals=
H1:
p1
p2
not equals≠
Find the test statistic for this hypothesis test.
2.432.43
(Round to two decimal places as needed.)Determine the P-value for this hypothesis test.
0.0150.015
(Round to three decimal places as needed.)Interpret the P-value.
If the population proportions are
one would expect a sample difference proportion
the one observed in about
▼
▼
nothing
out of 100 repetitions of this experiment.(Round to the nearest integer as needed.)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 4 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning