Paired t-test 9. A doctor wants to test if a new "love potion" increases the number of dates over the course of a year. She chooses ten subjects, counts the number of dates over a year, and then gives them the "love potion" for the next year. The data is as follows: Before 12 13 11 2 6 18 20 After 17 9. 25 7 14 8 10 21 Difference 1 12 2 3 -4 -8 1 (A - B) Can she say that the potion works? (Use a = .10) Ho: mu d = 0 Ha: mu d > 0

Q: Find the positive number which gives the smallest answer when you add its square to 16 times its…

A: Let the number is x So,  when I add its square to 16 times its reciprocal, then I get: We have to…

Q: Write the solution set of the equation 2x₁ - 5x₂ + 3x3 = 2 using parameters

A:

Q: Please show every step. Also, set up as an equation where you are solving for “X”.

A:

Q: Is equation, odd, even or negative?

A:

Q: X-X-30-0

A: x2 – x – 30 = 0Solve by completing the square.

Q: The amount of military spending M (in biliions of dollars) in the U.S. during year t is given…

A: Given:The amount of military spending M in the U.S. during year t is givenapproximately…

Q: x^2=4x-9. Solution set is: { , }

A:

Q: 6x-1 3x +4 3x-1

A:

Q: Solve: х? — 7х — -12 O x = -3, 4 O x = – ¤ = — 4, 3 х —D — 4, — 3 %3D Ox = 3, 4

A: The given quadratic equation is: x2-7x=-12

Q: 22 V2 V3

A:

Q: xy 12 %3D

A: take value of x then we get y then make a table and then draw the graph

Q: It should be a -c at the end for the start of the equation.

A: By using the Law of Cosines to prove that, .

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.