Mathematics

Mathematics, 26.07.2019 04:20, agarza0326

Dr. smith is instructing his graduate students to put together a sample for an upcoming research study of collegestudents. the graduate students were asked to stand outside of the student union to solicit participants, finding 50freshmen, 50 sophomore, 50 juniors, and 50 seniors. what sort of sampling method is being used? quota sampling cluster sampling simple random sampling accidental sampling stratified sampling

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Mathematics, 04.08.2019 07:00, xxaizuwu

The mathematics department at sun tan university is sending a delegation of mathematicians and graduate students to a conference. they will pay for 4 mathematicians and 5 graduate students to go. if the department has 16 mathematicians and 24 graduate students, how many different delegations are possible?

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Mathematics, 18.09.2019 14:10, angieplasencia8

"suppose the fraction of undergraduate students who smoke is 15% and the fraction of graduate students who smoke is 23%. if one-fifth of the college students are graduate students and the rest are undergraduates, what is the probability that a student who smokes is a graduate student? given the information in part (a), is a randomly chosen college student more likely to be a graduate or undergraduate student? b. repeat part (b) assuming that the student is a smoker."

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Mathematics, 02.11.2019 03:31, skeletonorchestra

In a recent survey, 1358 arizona state university students were asked about their plans after graduation. the following results were obtained: 1194 plan to get a new job, 306 plan to attend graduate school, and 547 plan to buy a new car. 46 plan to do all three things (get a new job, attend graduate school, and buy a new car). 28 plan to only attend graduate school. 432 plan to get a job and buya new car, but not attend graduate school. 221 plan to get a new job and attend graduate school. a. 13 pts] draw a venn diagram that represents the situation consisting of 2. cardinalities. how many people plan to attend graduate school and buy a new car, but not get a new job? how many students do not plan a buy a new car? how many students plan to get a new job or buy a new car? how many students do not plan to get a new job, attend graduate school, nor buy a new car?

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Mathematics, 08.11.2019 01:31, hailiemanuel930

The dean of the engineering school at a technical university wants to emphasize the importance of having students who are gifted at reading and writing as well as math. she wants to know if she can accurately claim that graduate students in engineering programs at her school have significantly higher scores on the verbal reasoning section of the gre (a standardized test used in the admissions process for many graduate programs) than the national average for engineering students. the national average for the verbal reasoning gre score for engineering students was 150 with a standard deviation of 9. a random sample of 49 engineering graduate students at her school were found to have an average verbal reasoning gre score of 153. what is the value of the test statistic used to determine whether the mean verbal reasoning gre score of the engineering graduate students at the technical university is higher than the national average? 136.33 −136.33 2.33 −2.33

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