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Of the two samples below which would have the more precise estimator or would they have the same precision? Explain your answer.
Sample O: A polling company wants to know how many people over the age of 18 in Ohio are unemployed. They take a simple random sample of 500 from the state of Ohio to find the percentage.
Sample U: A polling company wants to know how many people over the age of 18 in the United States are unemployed. They take a simple random sample of 500 from the United States to find the percentage.
urn 1 has 5 red and 7 blue balls and urn 2 has 6 red and12 blue balls. pick 3 uniformly and randomly from each of the 2
which of the following is a valid objective function for a linear programming problem?max 5x33y3min 1x 3y3max 5x2
Suppose that Richard Rice, a resident of the area, decides to take the test for malaria. If his test results indicate that he has malaria, what is the probability that he actually has malaria?
Eight pawns are placed on eight random squares on a chess board. What is the probability that no two pawns are in the same row or the same column?
a fourth grade student has a list of 8 books for her subjects. due to rising costs the student cannot afford to buy all
The p-value measures the probability of making a Type II error. D. The larger the p-value, the stronger the evidence against the null hypothesis. E. None of the above statements are true.
(a) At the 98% con?dence level, test whether annual income and the amount of life insurance policies are independent. (b) Find the attained signi?cance level. (c) State any assumptions you have made in solving the problem.
How many different possibilities exist for the set of iced-tea drinks that a given participant will taste? (Show how you calculated your answer.)
the time it takes a cell to divide called mitosis is normally distributed with an average time of one hour and a
the auto parts department of an automotive dealership sends out an average of 4.9 special orders daily.a what is the
None of those lost to follow-up had developed chicken pox prior to becoming lost. Assume that you can get chicken pox only once. What is the cumulative incidence of chicken pox in this population during the one-year period from January 1st through..
What are precision and accuracy?
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