Mathematics, 19.02.2021 02:40, baileysosmart
Washington High wants to estimate the number of seniors who plan to go to a 4-year college. Answer the following. (a) Which of the following surveys probably would best represent the entire population of seniors? 50 student council members are randomly selected; 44 plan to go to a 4-year college. 50 seniors are randomly selected; 32 plan to go to a 4-year college. 50 honor roll students are randomly selected from the senior class; 40 plan to go to a 4-year college. (b) There are 950 seniors at Washington High. Using your answer from part (a), estimate the number of seniors who plan to go to a 4-year college. seniors
Answers: 3
Mathematics, 21.06.2019 20:00, Irenesmarie8493
The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250
Answers: 3
Mathematics, 21.06.2019 20:50, brea2006
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Washington High wants to estimate the number of seniors who plan to go to a 4-year college. Answer t...
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