According to the United States Census Bureau, 90% of Americans over the age of 25 have...
According to the United States Census Bureau, 90% of Americans over the age of 25 have
finished high school. This is the highest proportion that has even been recorded! Suppose that in a
random sample of 500 Americans over the age of 25, 462 finished high school.
a. Fill in the following information:
p= __________
p^=__________
n =__________
b.True or False: p^ is an example of a parameter.
c. Calculate the standard error. Round your answer to 3 decimal places.
d.True or False: If n increases to 1000, we would expect the standard error to increase.
Homework Answers
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According to the United States Census Bureau, 90% of Americans
over the age of 25 have...
(1 point) The Census Bureau reports that 82% of Americans over the age of 25 are...
(1 point) The Census Bureau reports that 82% of Americans over the age of 25 are high school graduates. A survey of randomly selected residents of certain county included 1320 who were over the age of 25, and 1047 of them were high school graduates. Find the mean and standard deviation for the number of high school graduates in groups of 1320 Americans over the age of 25. Mean = Standard deviation =
(1 point) The Census Bureau reports that 82% of Americans over the age of 25 are...
(1 point) The Census Bureau reports that 82% of Americans over the age of 25 are high school graduates. A survey of randomly selected residents of certain county included 1250 who were over the age of 25, and 1013 of them were high school graduates. Find the mean and standard deviation for the number of high school graduates in groups of 1250 Americans over the age of 25. Mean = Standard deviation =
According to the U.S. Census Bureau, among males over the age of 24, 13.4% did not...
According to the U.S. Census Bureau, among males over the age of 24, 13.4% did not complete high school, 31.9% completed high school, and 16.5% attended some college without graduating. (Source: U.S. Department of Commerce, Census Bureau, Current Population Survey Data on Educational Attainment.) a. Compute and interpret the probability that a randomly selected male in the United States who is over the age of 24 did not attend college.
According to the U.S. Census Bureau, among males over the age of 24, 13.4% did not...
According to the U.S. Census Bureau, among males over the age of 24, 13.4% did not complete high school, 31.9% completed high school, and 16.5% attended some college without graduating. (Source: U.S. Department of Commerce, Census Bureau, Current Population Survey Data on Educational Attainment.) a. Compute and interpret the probability that a randomly selected male in the United States who is over the age of 24 did not attend college.
Scratchpad According to the US Census Bureau's American Community Survey, 87% of Americans over the age...
Scratchpad According to the US Census Bureau's American Community Survey, 87% of Americans over the age of 25 have earned a high school diploma. Suppose we are going to take a random sample of 200 Americans in this age group and calculate what proportion of the sample has a high school diploma. What is the probability that the proportion of people in the sample with a high school diploma is less than 85%? 0.17 (B 0.23 C 0.20 D 0.26...
--- According to the U.S. Census Bureau, 11% of children in the United States lived with...
--- According to the U.S. Census Bureau, 11% of children in the United States lived with at least one grandparent in 2009 (USA TODAY, June 30, 2011). Suppose that in a recent sample of 1570 children, 236 were found to be living with at least one grandparent. At a 2.5% significance level, can you conclude that the proportion of all children in the United States who currently live with at least one grandparent is higher than 11%? Use both the...
According to the U.S. Census Bureau, 11% of children in the United States lived with at...
According to the U.S. Census Bureau, 11% of children in the United States lived with at least one grandparent in 2009 (USA TODAY, June 30, 2011). Suppose that in a recent sample of 1560 children, 249 were found to be living with at least one grandparent. At a 1% significance level, can you conclude that the proportion of all children in the United States who currently live with at least one grandparent is higher than 11%? Use both the p-value...
(5 points) According to the U.S. Census Bureau, 88% of Americans had at least a high...
(5 points) According to the U.S. Census Bureau, 88% of Americans had at least a high school diploma or GED in 2015 and 33% had a bachelor's degree or more. 100 individuals with a high school diploma and no college were surveyed and their average annual salary was $34,436 with a standard deviation of $1643. 100 individuals with a bachelor's degree were also surveyed and their annual salary was $58,657 with a standard deviation of $2340. Carry out an appropriate...
Question 11 (12 points) According to the U.S. Census Bureau, the population of the United States...
Question 11 (12 points) According to the U.S. Census Bureau, the population of the United States in 2008 was 304 million people. In addition, the population of the United States was growing at a rate of 1.1% per year. Assuming this growth rate is continues, the model P(t) = 304(1.011)' 2009 represents the population P (in millions of people) in year t. According to the model, when will the population be 453 million people? Year Be sure to round your...
Sampling of size n = 125 are randomly selected from the United States census data. Which...
Sampling of size n = 125 are randomly selected from the United States census data. Which sample statistic will best target the population parameter? Standard deviation Proportion Median Range
(1 point) The Census Bureau reports that 82% of Americans over the age of 25 are high school graduates. A survey of randomly selected residents of certain county included 1320 who were over the age of 25, and 1047 of them were high school graduates. Find the mean and standard deviation for the number of high school graduates in groups of 1320 Americans over the age of 25. Mean = Standard deviation =
(1 point) The Census Bureau reports that 82% of Americans over the age of 25 are high school graduates. A survey of randomly selected residents of certain county included 1250 who were over the age of 25, and 1013 of them were high school graduates. Find the mean and standard deviation for the number of high school graduates in groups of 1250 Americans over the age of 25. Mean = Standard deviation =
Scratchpad According to the US Census Bureau's American Community Survey, 87% of Americans over the age of 25 have earned a high school diploma. Suppose we are going to take a random sample of 200 Americans in this age group and calculate what proportion of the sample has a high school diploma. What is the probability that the proportion of people in the sample with a high school diploma is less than 85%? 0.17 (B 0.23 C 0.20 D 0.26...
--- According to the U.S. Census Bureau, 11% of children in the United States lived with at least one grandparent in 2009 (USA TODAY, June 30, 2011). Suppose that in a recent sample of 1570 children, 236 were found to be living with at least one grandparent. At a 2.5% significance level, can you conclude that the proportion of all children in the United States who currently live with at least one grandparent is higher than 11%? Use both the...
(5 points) According to the U.S. Census Bureau, 88% of Americans had at least a high school diploma or GED in 2015 and 33% had a bachelor's degree or more. 100 individuals with a high school diploma and no college were surveyed and their average annual salary was $34,436 with a standard deviation of $1643. 100 individuals with a bachelor's degree were also surveyed and their annual salary was $58,657 with a standard deviation of $2340. Carry out an appropriate...
Question 11 (12 points) According to the U.S. Census Bureau, the population of the United States in 2008 was 304 million people. In addition, the population of the United States was growing at a rate of 1.1% per year. Assuming this growth rate is continues, the model P(t) = 304(1.011)' 2009 represents the population P (in millions of people) in year t. According to the model, when will the population be 453 million people? Year Be sure to round your...
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