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1. As part of a curriculum review, the psychology department would like to select a simple random sample of 20 of last year's 140 graduates to obtain information on how graduates perceived the value of the curriculum. Describe two different methods that might be used to select the sample.
2. A petition with 500 signatures is submitted to a university's student council. The council president would like to determine the proportion of those who signed the petition who are actually registered students at the university. There is not enough time to check all 500 names with the registrar, so the council president decides to select a simple random sample of 30 signatures. Describe how this might be done.
the average size of a home in 2003 was 2313 square feet according to the national association of home builders and
a spinner is divided into 4 equal spaces. a player bets 2.00 on a given space. if the spinner lands on that space he is
The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages marked" large" and shrimp that weigh less than 0.47 ounces each into packages marked "small"; the remainder are packed in "medium" size packages.
Recent crime reports indicate that 5.2 motor vehicle thefts occur each minute in the United States. Assume that the distribution of thefts per minute can be approximated by the Poisson probability distribution.
Determine the expected frequencies for each of the cells in the following contingency tables. For each problem, state how many of the expected values actually had to be computed and how many could be found by subtraction.
in a survey of 500 u.s. adults 45 of them said that lounging at the beach was their dream vacation assuming this to be
You wish to do a community needs assessment survey of a community to find out how much office space is needed by professionals in the community.
What is the major difference between finding significance and confidence intervals using population samples or using population proportions?
Suppose that this test is given to 1000 students. What is the number of students that are expected to make scores between 170 and 230?
What is the 95% confidence interval for the proportion of all delinquent customer accounts at this manufacturing company?
What happens to the Maximum Error of Estimate as the sample size gets larger?
what is the difference between significance level and a p-value? explain in
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