11) An educational institute claims that their new exam preparation course improves test scores by at least 15%. You gather test scores before and after the course from 25 students: Student 1 2 3 4 5 6 7 8 9 10 11 12 13 Before 75 80 70 85 90 60 78 95 70 88 82 76 65 After 85 90 78 88 95 70 85 97 75 92 89 83 70

Q: I also Need help with part D please

A: The correlation coefficient is 0.8137.

Q: Direction of opening: Zeros: y-intercept: Vertex: Axis of Symmetry: Max or Min Value:

A:

Q: Evaluate the following integral:

A: Given,         ∫2416-25n2dn

Q: Thank you so much

A:

Q: e. lim f(1) f. lim f(r) 2 g. lim f(1)

A: e) -1+ is greater than -1, so we will take the second piece of the function

Q: Evaluate then simplify: Stan (4p) sec (4p)dp

A:

Q: Thank you

A:

Q: Help me please

A: →Use trigonometric relation to find the value of x.                       sinθ…

Q: Calculate the limit algebraically: x³ + 8 lim x→-2 x² + 7x + 10

A: Consider the given expression, If we substitute  in the expression we get  form. so, use L-hospital…

Q: thank you

A:

Q: could you provide an example please?

A: Let us take:  u→=0, 0, 0v→=1, 2, 3w→=4, 5, 6

Q: Please help

A: Step 1:For a triathlete as well as it was loosely more expedient to aim for a balanced level of…