Answer:
D)
24
Step-by-step explanation:
Answer:
-14a
Explanation:
We are given 7(b - a) - 7(b + a).
We can distribute the 7’s to get:
7b - 7a - 7b - 7a
Combining like terms, we have:
-14a
Answer:
x=-2
y=5
Step-by-step explanation:
x+2y=8 equation-1
-x+3y=17 equation-2
5y=25
Both side divided 5,
y=5
Equation-1, y=5
x+2(5)=8
x+10=8
Both side -10
x+10-10=8-10
x=-2
Equation-2, y=5
-x+3(5)=17
-x+15=17
Both side -15
-x+15-15=17-15
-x=2
x=-2
Answer:
1/3x - 1/3
Step-by-step explanation:
First off, we can write this the words as a mathematical equations so its easier to work with:
1/3 (x - 1)
Now we can use distributive property and finally simplify this equation:
1/3 (x-1)
1/3x - 1/3 x 1
1/3x - 1/3
Answer:
b. A smaller sample size would increase the effectiveness of a hypothesis test.
Step-by-step explanation:
A hypothesis test is an important procedure in the field of statistics. It evaluates any two mutually exclusive statements about a population that determines and tells which statement made best supports to the sample data provided.
Now we know that an increase in the sample size makes the hypothesis test more effective and sensitive and it is more likely to reject the null hypothesis.
The probability of making a type I error is known as the Alpha while the probability of making type II error is called Beta.
Thus the correct option is (b).
