Will someone please answer this quick question question for me?
1 answer:
Answer:
x=1
Step-by-step explanation:
When the argument of the absolute value is positive, the equation has no solutions. It is equivalent to -3 = -1.
So, the only solution is found where the argument of the absolute value is negative:
-(2x -3) = 2x -1
4 = 4x . . . . . . . . add 2x+1
1 = x . . . . . . . . . . divide by 4
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Answer:
a)
b)
Step-by-step explanation:
The National Institute of Mental Health published an article stating that in any one-year period, approximately 9.5 percent of American adults suffer from depression or a depressive illness.
At the null hypothesis, we test if the value we find is equal to the expected value, that is:
Test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult American population
Lower, which means that the alternate hypothesis, we test if the value we find is lower than the expected value, that is: