Mathematics, 21.11.2019 06:31 lethycialee79711
The director of admissions at the university of maryland, university college is concerned about the high cost of textbooks for the students each semester.
a sample of 25 students enrolled in the university indicates that x (bar) = $315.4 and s = $43.20.a. using the 0.10 level of significance, is there evidence that the population mean is above $300?
b. what is your answer in (a) if s = $75 and the 0.05 level of significance is used?
c. what is your answer in (a) if x (bar) = $305.11 and s = $43.20?
d. based on the information in part (a), what decision should the director make about the books used for the courses if the goal is to keep the cost below $300?
Answers: 2
Mathematics, 21.06.2019 16:30
The equation of a circle is (x - 3)2 + (y - 7)2 = 25. determine the length of the radius. 4 25 12.5 5 write the standard equation of the circle with center (2, 3) and a diameter of 12. (x - 2)2 + (y - 3)2 = 36 (x + 2)2 + (y + 3)2 = 12 (x - 2)2 + (y - 3)2 = 6 (x - 3)2 + (y - 2)2 = 36 the equation of a circle is (x + 3)2 + (y + 7)2 = 25. where is (3, 4) located in relation to the circle? on the circle in the interior of the circle in the exterior of the circle at the center of the circle
Answers: 1
Mathematics, 21.06.2019 17:40
Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.
Answers: 2
Mathematics, 21.06.2019 18:00
If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?
Answers: 1
Mathematics, 22.06.2019 04:30
Me with these questions , i don’t understand scientific notation!
Answers: 2
The director of admissions at the university of maryland, university college is concerned about the...
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