Mathematics

Mathematics, 15.07.2019 18:30, kaysavage7674

Suppose you want to estimate the proportion of traditional college students on your campus who own their own car. you have no preconceived idea of what that proportion might be. what sample size is needed if you wish to be 98% confident that your estimate is within 0.05 of the true proportion?

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Mathematics, 03.07.2019 22:20, lillianradecki

Suppose you want to estimate the proportion of traditional college students on your campus who own their own car. you have no preconceived idea of what that proportion might be. what sample size is needed if you wish to be 9898% confident that your estimate is within 0.030.03 of the true proportion?

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Mathematics, 30.09.2019 20:20, batmannn1516

College students and stds: a recent report estimated that 25% of all college students in the united states have a sexually transmitted disease (std). due to the demographics of the community, the director of the campus health center believes that the proportion of students who have a std is higher at his college. he tests h 0: p = 0.25 versus h a: p > 0.25. the campus health center staff select a random sample of 150 students and determine that 43 have been diagnosed with a std. conduct a hypothesis test to address the director’s hypothesis. use a 5% significance level to make your decision. use the applet (at the top of this checkpoint) to determine the p‐value. which of the following is an appropriate conclusion based on the results? group of answer choices the data provides strong evidence that the proportion of students at his college who have a std is more than 25%. the data suggests that the proportion of students at his college who have a std is 29%. of the students surveyed at his college, 29% have an std, but this is not strong enough evidence to conclude that the proportion of students at his college who have a std is higher than the report’s estimate. this survey suggests that 25% of students at his college have a std.

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Mathematics, 05.10.2019 00:30, mari5512

Living with parents: the pew research center reported that 36% of american millennials (adults ages 18–31) still live at home with their parents. a group of students wants to conduct a study to determine whether this result is true for students at their campus. they survey 300 randomly selected students at their campus and determine that 43% of them live at home with their parents. with this data, they test the following hypotheses. h0: of millennial students at their campus, 36% live at home with their parents. ha: more than 36% of millennial students at their campus live at home with their parents. in order to assess the evidence, which question best describes what we need to determine? if we examine a sample of students at their campus and determine the proportion who still live at home with their parents, how likely is that proportion to be 36%? if we examine a sample of students at their campus and determine the proportion who still live at home with their parents, how likely is that proportion to be 43% or more? if we examine the proportion of students at their campus who still live at home with their parents, how likely is that proportion to be 36%? if we examine the proportion of students at their campus who still live at home with their parents, how likely is that proportion to be more than 36%? if we examine the proportion of students at their campus who still live at home with their parents, how likely is that proportion to be 43%?

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Mathematics, 09.11.2019 00:31, dubouuu

Suppose you want to estimate the proportion of traditional college students on your campus who own their own car. from research on other college campuses, you believe the proportion will be near 3030%. what sample size is needed if you wish to be % confident that your estimate is within 0.020.02 of the true proportion?

Answers: 3

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