(a) What population is under consideration in the data set? O all adults in the United States who could not cover the expense all adults in the United States O all adults O all adults who were surveyed

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
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I want   only part  (e) and (f)  with proper explaination.

In a random sample 763 adults in the United States, 326 say they could not cover a s400 unexpected expense without borrowing money or going into debt.
(a) What population is under consideration in the data set?
O all adults in the United States who could not cover the
expense
all adults in the United States
O all adults
O all adults who were surveyed
O all adults in the United States who could cover the expense
(b) What parameter is being estimated?
O the proportion of U.S. adults who could cover a $400 expense without borrowing money or going into debt
O the average number of U.S. adults who could not cover a $400 expense without borrowing money or going into
debt
O the average number of U.S. adults who could cover a $400 expense without borrowing money or going into debt
O the exact number of U.S. adults who could not cover a $400 expense without borrowing money or going into debt
the proportion of U.S. adults who could not cover a $400 expense without borrowing money or going into debt
(e) What is the point estimate for the parameter? (Round your answer to three decimal places.)
427
(4) What is the name of the statistic can we use to measure the uncertainty of the point estimate?
O sample mean
O sample size
standard error
sample proportion
(e) Compute the value from part (d) for this context. (Round your answer to four decimal places.)
0181
(n A cable news pundit thinks the value is actually s0%, Should she be surprised by the data? (Round your answer to two decimal places.)
standard errors way from the point estimate, so she houid vv be surprised.
A value of 0.50 is
(0) Suppose the true population value was found to be 40%. If we use this proportion to recompute the value in part (0) using p-0.4 instead of j, does the resulting value change much?
O ves
No
Transcribed Image Text:In a random sample 763 adults in the United States, 326 say they could not cover a s400 unexpected expense without borrowing money or going into debt. (a) What population is under consideration in the data set? O all adults in the United States who could not cover the expense all adults in the United States O all adults O all adults who were surveyed O all adults in the United States who could cover the expense (b) What parameter is being estimated? O the proportion of U.S. adults who could cover a $400 expense without borrowing money or going into debt O the average number of U.S. adults who could not cover a $400 expense without borrowing money or going into debt O the average number of U.S. adults who could cover a $400 expense without borrowing money or going into debt O the exact number of U.S. adults who could not cover a $400 expense without borrowing money or going into debt the proportion of U.S. adults who could not cover a $400 expense without borrowing money or going into debt (e) What is the point estimate for the parameter? (Round your answer to three decimal places.) 427 (4) What is the name of the statistic can we use to measure the uncertainty of the point estimate? O sample mean O sample size standard error sample proportion (e) Compute the value from part (d) for this context. (Round your answer to four decimal places.) 0181 (n A cable news pundit thinks the value is actually s0%, Should she be surprised by the data? (Round your answer to two decimal places.) standard errors way from the point estimate, so she houid vv be surprised. A value of 0.50 is (0) Suppose the true population value was found to be 40%. If we use this proportion to recompute the value in part (0) using p-0.4 instead of j, does the resulting value change much? O ves No
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