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10. Suppose I claimed that the proportion of all students at college that voted in the...
3. Suppose a researcher believes that college faculty vote at higher rate than college students. She...
3. Suppose a researcher believes that college faculty vote at higher rate than college students. She collects data from 200 college faculty and 200 college students using simple random sampling. If 167 of the faculty and 138 of the students voted in the 2008 Presidential election, (A) Find a 90% confidence interval for the difference between the proportion of faculty and the proportion of students who vote. (b) Is there enough evidence at the 3% level of significance to support...
A recent study at a local college claimed that the proportion, p, of students who commute...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 15%. If a random sample of 275 students at this college is selected, and it is found that 55 commute more than fifteen miles to school, can we reject the college's claim at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p. of students who commute...
A recent study at a local college claimed that the proportion, p. of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 265 students at this college is selected, and it is found that 65 commute more than fifteen miles to school, can we reject the college's claim at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p, of students who commute...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 275 students at this college is selected, and it is found that 87 commute more than fifteen miles to school, can we reject the college's claim at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below Carry your intermediate computations to at...
A presidential candidate's alde estimates that, among all college students, the proportion p who intend to...
A presidential candidate's alde estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 60%. IF 114 out of a random sample of 220 college students expressed an intent to vote, can we reject the aide's estimate at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in...
A presidential candidate's aide estimates that, among all college students, the proportion p who intend to...
A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at most 65%. If 194 out of a random sample of 270 college students expressed an intent to vote, can the aide's estimate be rejected at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in...
A recent study at a local college claimed that the proportion, p, of students who commute...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 255 students at this college is selected, and it is found that 70 commute more than fifteen miles to school, can we reject the college's claim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p. of students who commute...
A recent study at a local college claimed that the proportion, p. of students who commute more than fifteen miles to school is no more than 15%. If a random sample of 255 students at this college is selected, and it is found that 53 commute more than fifteen miles to school, can we reject the college's claim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
Question 3) Suppose that El Camino is studying the cost of textbooks for college students. Accord-...
Question 3) Suppose that El Camino is studying the cost of textbooks for college students. Accord- ing to research from 2013 a college students spends 655 dollars per year on textbooks. El Camino wants to study if recent trends such as e-books, online notes, bundled custom editions ete have reduced this cost for their students. To do this they take a random sample of 31 current students and find that the average student spent 595 dollars with a standard deviation...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles t...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 270 students at this college is selected, and it is found that 71 commute more than fifteen miles to school, can we reject the college's daim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
3. Suppose a researcher believes that college faculty vote at higher rate than college students. She collects data from 200 college faculty and 200 college students using simple random sampling. If 167 of the faculty and 138 of the students voted in the 2008 Presidential election, (A) Find a 90% confidence interval for the difference between the proportion of faculty and the proportion of students who vote. (b) Is there enough evidence at the 3% level of significance to support...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 15%. If a random sample of 275 students at this college is selected, and it is found that 55 commute more than fifteen miles to school, can we reject the college's claim at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p. of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 265 students at this college is selected, and it is found that 65 commute more than fifteen miles to school, can we reject the college's claim at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 275 students at this college is selected, and it is found that 87 commute more than fifteen miles to school, can we reject the college's claim at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below Carry your intermediate computations to at...
A presidential candidate's alde estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 60%. IF 114 out of a random sample of 220 college students expressed an intent to vote, can we reject the aide's estimate at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in...
A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at most 65%. If 194 out of a random sample of 270 college students expressed an intent to vote, can the aide's estimate be rejected at the 0.1 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 25%. If a random sample of 255 students at this college is selected, and it is found that 70 commute more than fifteen miles to school, can we reject the college's claim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
A recent study at a local college claimed that the proportion, p. of students who commute more than fifteen miles to school is no more than 15%. If a random sample of 255 students at this college is selected, and it is found that 53 commute more than fifteen miles to school, can we reject the college's claim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
Question 3) Suppose that El Camino is studying the cost of textbooks for college students. Accord- ing to research from 2013 a college students spends 655 dollars per year on textbooks. El Camino wants to study if recent trends such as e-books, online notes, bundled custom editions ete have reduced this cost for their students. To do this they take a random sample of 31 current students and find that the average student spent 595 dollars with a standard deviation...
A recent study at a local college claimed that the proportion, p, of students who commute more than fifteen miles to school is no more than 20%. If a random sample of 270 students at this college is selected, and it is found that 71 commute more than fifteen miles to school, can we reject the college's daim at the 0.01 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at...
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