Mathematics, 19.12.2019 23:31 kashishmehta917
Does going to a private university increase the chance that a student will graduate with student loan debt? a national poll by the institute for college access and success showed that in 69% of college graduates from public and nonprofit colleges in 2013 had student loan debt. a researcher wanted to see if there was a significant increase in the proportion of student loan debt for public and nonprofit colleges in 2014. suppose that the researcher surveyed 1500 graduates of public and nonprofit universities and found that 71% of graduates had student loan debt in 2014. let p be the proportion of all graduates of public nonprofit universities that graduated with student loan debt. what are the appropriate null and alternative hypotheses for this research question?
a. h0: p = 0.69 ha: p ≠0.69
b. h0: p = 0.69 ha: p > 0.69
c. h0: p = 0.71 ha: p ≠0.71
d. h0: μ = 0.69 ha: μ > 0.69
Answers: 1
Mathematics, 21.06.2019 19:00
Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?
Answers: 1
Mathematics, 22.06.2019 01:30
Kelli swam upstream for some distance in a hour.she then swam downstream the same river for the same distance in only 6 minutes.if the river flows at 5km/hr, how fast can kelli swim in still water?
Answers: 3
Mathematics, 22.06.2019 02:20
The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?
Answers: 2
Mathematics, 22.06.2019 07:00
2. a family eats at a restaurant. the bill is $42. the family leaves a tip and spends $49.77. a. how much was the tip in dollars? b. how much was the tip as a percentage of the bill?
Answers: 2
Does going to a private university increase the chance that a student will graduate with student loa...
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