The next 10 questions refer to the following scenario. The average student studies eight hours for a statistics exam and receives a grade of 84. In a sample of 25 students who study twelve hours for a statistics exam you find that the average grade is X = 87. You want to test the hypothesis that studying twelve hours statistically significantly increases academic performance.

Q: 2/18 – 12/32 + 3V50

A: The solution is given below in the next step:

Q: 75 - 3.5y - 4y = 4y + 6

A:

Q: 10 8/10 + 9 7/12=

A:

Q: 8x + 6 c² + 9x - 361] S[x² 3x

A:

Q: How many 4-permutations of the multiset {A®, B®,C5,D²} exist?

A: claim- how many 4-permutation of the multiset A∞ , B∞ , C5 , D2exist ? as we know  number of r…

Q: -3 -10

A: The given equation is:  -3   2÷-10    7

Q: 5 7/12 + 1 3/4 + 4 1/2

A: Given that 5712+134+412Solution  :5712+134+412=57+39+24612

Q: 9 5/12 - 3 2/3 =

A: Case 1: Let the given number be in mixed fraction notation.

Q: Compute the indicated product.   -1 3   9 2 0   3 9 3

A:

Q: 1. Use expansion along the 3rd row -4 3 1 2 -1 1 7 5

A:

Q: -1-3i 나

A: