HELP i need help solving 5x+(3x-4/5)=12
2 answers:
Answer:
Step-by-step explanation:
We have been given an equation . We are asked to solve the given equation.
First of all, we will remove parentheses as:
Now, we will combine like terms.
Upon adding on both sides of equation, we will get:
Now, we need to make a common denominator.
Our last step is to divide both sides by 8 as:
Therefore, is the solution of our given equation.
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Answer:
Null hypothesis:
Alternative hypothesis:
And the best answer for this case is:
C. p-value
Step-by-step explanation:
Data given and notation
n represent the random sample taken
estimated proportion of interest
is the value that we want to test
represent the significance level
z would represent the statistic (variable of interest)
represent the p value (variable of interest)
Concepts and formulas to use
We need to conduct a hypothesis in order to test the claim that the true proportion i 0.72 or no.:
Null hypothesis:
Alternative hypothesis:
When we conduct a proportion test we need to use the z statistic, and the is given by:
(1)
The One-Sample Proportion Test is used to assess whether a population proportion is significantly different from a hypothesized value
.
For this case the only probability that can be calculated from the statistic calculated is the p value given by:
And the best answer for this case is:
C. p-value