Homework Answers
| Household size | Frequency | Relative Frequency |
|---|---|---|
| 1 | 8 | 0.16 |
| 2 | 5 | 0.10 |
| 3 | 10 | 0.20 |
| 4 | 9 | 0.18 |
| 5 | 7 | 0.14 |
| 6 | 7 | 0.14 |
| 7 | 4 | 0.08 |
| 50 |
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(3 points) The U.S. Bureau of the Census conducts nationwide surveys on characteristics of U.S. households....
(1 point) The U.S. Bureau of the Census conducts nationwide sureys on characteristics of U.S. households....
(1 point) The U.S. Bureau of the Census conducts nationwide sureys on characteristics of U.S. households. Following are data on the number of people per household for a sample of 40 households. Construct a grouped data table for these household sizes. 6 6 1 7 7 152 5 23 23 527 54737325 2 2 6 7 7 5 7 5 44437735 Household size Frequency Relative Frequency 1 2 3 4 5 6 7 Total 40 1
The US Bereau of the census conducts nationwide surveys on characteristics of US households. Following are...
The US Bereau of the census conducts nationwide surveys on
characteristics of US households. Following are data on the number
of people per household for a sample of 50 households. Construct a
grouped data table for these household sizes.
ys on characteristics of U.S. households. Following are data on the sizes 444446 43435 46265 475551 Household size Frequency Relative Frequency 8/50=0.2 5/40-0.125 4/40-0.1 9/40-0.225 6/40-0. 15 7/40-0 175 1/40=0.025 2 3 4 4 6 Total 50
need help with these Question 7 (20 points) The U.S. Census Bureau conducts a study to...
need help with these
Question 7 (20 points) The U.S. Census Bureau conducts a study to determine the time needed to complete the short form. The Bureau surveys 200 people. The sample mean is 8.2 minutes. There is a known standard deviation of 2.2 minutes. The population distribution is assumed to be normal. (a) (5 points) Construct a 90% confidence interval for the population mean time to complete the forms. (b) (5 points) calculate the error bound. (c) (5 points)...
The U.S. Census Bureau conducts a study to determine the time needed to complete the short...
The U.S. Census Bureau conducts a study to determine the time needed to complete the short form. The Bureau surveys 200 people. The sample mean is 8.2 minutes, and the sample standard deviation is 2.2 minutes. To calculate a confidence interval for this data, would you use a value from the Z distribution or the t distribution? Write a sentence to explain your choice. (4 points) Calculate the 99% confidence interval for µ, the population mean time it takes to...
The Census Bureau groups data on households into census tracts, where each census tract has a total population of about 4,000 residents. Census tracts should be divided so that the households in the c...
The Census Bureau groups data on households into census tracts,
where each census tract has a total population of about 4,000
residents. Census tracts should be divided so that the households
in the census tracts share certain characteristics, such as
economic status. Even though most tracts are around 4,000
residents, there is some variability, which is the focus of this
lab. In practice, census tracts usually have a population between
1,200 and 8,000 people.
I just need help with the...
The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age...
The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age population that is registered to vote. Suppose that 637 employed persons and 586 unemployed persons are independently and randomly selected, and that 400 of the employed persons and 325 of the unemployed persons have registered to vote. Can we conclude that the percentage of employed workers (Pi), who have registered to vote, exceeds the percentage of unemployed workers (P2), who have registered to vote?...
Please answer all this questions if you can't do not answer just one thanks 1 point)...
Please answer all this questions if you can't do not
answer just one thanks
1 point) The U.S. Bureau of the Census conducts nationwide sureys on characteristics of U.S. households. Household size Relative Frequency 0.125 0.125 0.075 0.2 0.325 0.125 0.025 4 6 7 Total a) Use the previous relative frequency distribution to obtain the percentage of U.S. households that are between sizes 3 and 5. answer. b) Use your answer from part a) to estimate the area under the...
The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age...
The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age population that is registered to vote. Suppose that 700 employed persons and 300 unemployed persons are independently and randomly selected and that 500 of the employed persons and 200 of the unemployed persons have registered to vote. Can we conclude that the percentage of the employed workers (p1), who have registered to vote, exceeds the percentage of unemployed workers (p2), who have registered to...
The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age...
The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age population that is registered to vote. Suppose that 400 employed persons and 487 unemployed persons are independently and randomly selected, and that 221 of the employed persons and 211 of the unemployed persons have registered to vote. Can we conclude that the percentage of employed workers ( p1 ), who have registered to vote, exceeds the percentage of unemployed workers ( p2 ), who...
The U.S. Census Bureau collects demographics concerning the number of people in families per household. Assume...
The U.S. Census Bureau collects demographics concerning the number of people in families per household. Assume the distribution of the number of people per household is shown in the following table: ________________ x P(x) _______________ 2 0.27 3 0.25 4 0.28 5 0.13 6 0.04 7 0.03 a) Calculate the expected number o f people in families per household in the United States. b) Compute the variance and standard deviation of the number of people in families per household.
(1 point) The U.S. Bureau of the Census conducts nationwide sureys on characteristics of U.S. households. Following are data on the number of people per household for a sample of 40 households. Construct a grouped data table for these household sizes. 6 6 1 7 7 152 5 23 23 527 54737325 2 2 6 7 7 5 7 5 44437735 Household size Frequency Relative Frequency 1 2 3 4 5 6 7 Total 40 1
The US Bereau of the census conducts nationwide surveys on
characteristics of US households. Following are data on the number
of people per household for a sample of 50 households. Construct a
grouped data table for these household sizes.
ys on characteristics of U.S. households. Following are data on the sizes 444446 43435 46265 475551 Household size Frequency Relative Frequency 8/50=0.2 5/40-0.125 4/40-0.1 9/40-0.225 6/40-0. 15 7/40-0 175 1/40=0.025 2 3 4 4 6 Total 50
need help with these
Question 7 (20 points) The U.S. Census Bureau conducts a study to determine the time needed to complete the short form. The Bureau surveys 200 people. The sample mean is 8.2 minutes. There is a known standard deviation of 2.2 minutes. The population distribution is assumed to be normal. (a) (5 points) Construct a 90% confidence interval for the population mean time to complete the forms. (b) (5 points) calculate the error bound. (c) (5 points)...
The Census Bureau groups data on households into census tracts,
where each census tract has a total population of about 4,000
residents. Census tracts should be divided so that the households
in the census tracts share certain characteristics, such as
economic status. Even though most tracts are around 4,000
residents, there is some variability, which is the focus of this
lab. In practice, census tracts usually have a population between
1,200 and 8,000 people.
I just need help with the...
The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age population that is registered to vote. Suppose that 637 employed persons and 586 unemployed persons are independently and randomly selected, and that 400 of the employed persons and 325 of the unemployed persons have registered to vote. Can we conclude that the percentage of employed workers (Pi), who have registered to vote, exceeds the percentage of unemployed workers (P2), who have registered to vote?...
Please answer all this questions if you can't do not
answer just one thanks
1 point) The U.S. Bureau of the Census conducts nationwide sureys on characteristics of U.S. households. Household size Relative Frequency 0.125 0.125 0.075 0.2 0.325 0.125 0.025 4 6 7 Total a) Use the previous relative frequency distribution to obtain the percentage of U.S. households that are between sizes 3 and 5. answer. b) Use your answer from part a) to estimate the area under the...
The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age population that is registered to vote. Suppose that 700 employed persons and 300 unemployed persons are independently and randomly selected and that 500 of the employed persons and 200 of the unemployed persons have registered to vote. Can we conclude that the percentage of the employed workers (p1), who have registered to vote, exceeds the percentage of unemployed workers (p2), who have registered to...
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