Physics, 08.08.2019 23:10, mojr1000

Suppose you want to determine the average educational level of people throughout the nation. since it would be a great deal of work to survey every citizen, you decide to make your task easier by asking only the people on your campus. will you get an accurate answer? will your survey be distorted by a selection effect? explain.

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Mathematics, 24.06.2019 19:40, alisaharnauth

Bookstores like education, because national data show that 71% of college graduates have read a book in the past year, compared to 54% of thegeneral population age 18 and over. the data also show the nationwide average educational level to be 13 years of schooling completed, with an sd of about 3 years, forpersons age 18 and over. a bookstore is doing a market survey in a certain county, and takes a simple random sample of 1,000 people age 18 and over. they find the averageeducational level to be 14 years, and the sd is 5 years.a. use a z - test to test for significance. what are z and p? b. compute the 68% -95%- and 99.7%-confidence intervals.c.can the difference in average educational level between the sample and the nation be explained by chance variation? if not, what other explanation can you give?

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History, 02.07.2019 20:30, lavelma2011

Predicting suppose a nation has a great deal of human capital but few natural resources. in what kinds of products might the nation specialize?

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English, 27.08.2019 04:00, InfinityVicky

Which statement best captures the main argument of this speech? a) the nation has done much work to establish libraries and to improve the education system and the standard of living of its people. b) we need to improve the education system so that more people get the opportunity to read and enhance their knowledge. c) the country should have more libraries with books specially tailored to meet the needs of the elderly. d) many people in the country do not take full advantage of the libraries and schools available to them. what libraries mean to the nation by eleanor roosevelt "i have lived a great deal in the country, in a state which prides itself in spending much money on education, and i am quite sure that some people think there is no lack of education and no lack of library facilities, and sometimes i long to take people and let them see some of the back country districts that i know, in new york state. i know one place in the northern part of the state where i camped for a while in the summer, and i went to the school and talked to the teachers. they are using school books which have been passed down from one child to another. they have practically no books outside of the textbooks. the children in the district are so poor and some of them so pathetic that i suppose the struggle to live has been so great you could not think much about what you fed the mind, but i came away feeling that right there, in one of the biggest and richest states in the country, we had a big area that needed books and needed libraries to these schools in the education of the children, and, even more, to the whole community to learn to live through their minds. we are doing a tremendous amount through the home economics colleges to people to learn how to live in their homes, to better their standards of material living. we have got to think in exactly the same way about them to live mentally and to attain better standards, and we can do it only through the children. we can do ground work with the children; we must begin with them; but we have got to do a tremendous amount with the older people. i had a letter the other day which was pathetic. it was from a man who said he was 74 years old. he wrote to ask me to see that the adult education classes in that particular community were not stopped, because it had meant so much to him to learn to read. he did not think that i could understand what it meant never to have been able to understand a word on the printed page. he said, "i am not the only one. my next door neighbor is 81 and he learned to read last winter, and it has just made life over for us." it gave you the feeling that there is a good deal of education that is not being done in this country, in spite of all that is done. we have come a long way. we have done a great deal, but we still have a lot that can be done to improve our educational system, and we still have a tremendous amount to do with our libraries. we have got to make our libraries the center of a new life in the mind, because people are hungry to use their minds."

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Geography, 25.09.2019 04:00, scottmichetti

You find a survey of the population that includes information on people's educational attainment as well as their income. you take the difference between the average income of survey respondents that went to college and the average income of survey respondents that did not go to college and arrive at $20,000. you conclude that going to college raises a person's income by $20,000. think of a possible reason that your conclusion is inappropriate. (e.g. people choosing to go to college may have a stronger support system than those that do not choose to go to college, and support systems also influence a person's future income).

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