Answer:
Now we can find the p value using the alternative hypothesis with this probability:
Since the p value is large enough, we have evidence to conclude that the true proportion for this case is NOT significanctly higher than 0.75 since we FAIL to reject the null hypothesis at any significance level lower than 30%
Step-by-step explanation:
Information provided
n=100 represent the random sample selected
estimated proportion of students that are satisfied
is the value that we want to test
z would represent the statistic
represent the p value
System of hypothesis
We want to verify if more than 75 percent of his customers are very satisfied with the service they receive, then the system of hypothesis is.:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
Replacing the info given we got:
Now we can find the p value using the alternative hypothesis with this probability:
Since the p value is large enough we have evidence to conclude that the true proportion for this case is NOT significanctly higher than 0.75 since we FAIL to reject the null hypothesis at any significance level lower than 30%
Use the slope formula
![\frac{y2-y1}{x2-x1}](https://tex.z-dn.net/?f=%20%5Cfrac%7By2-y1%7D%7Bx2-x1%7D%20)
to find the slope. This will be the m in y=mx+b. The b will be your y intercept. Find this by substituting your coordinates for x and y of your now y=mx+b. If you are looking for the answer rather than how to do it, it is y=-
![\frac{2}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B3%7D%20)
x+
![\frac{1}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B3%7D%20)
. This is by my math. Try it yourself.
Answer:
![\large\boxed{Domain:\ x\in\mathbb{R}\to\text{the set of all real numbers}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7BDomain%3A%5C%20x%5Cin%5Cmathbb%7BR%7D%5Cto%5Ctext%7Bthe%20set%20of%20all%20real%20numbers%7D%7D)
Step-by-step explanation:
The domain of roots:
![\sqrt[n]{p(x)}](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Bp%28x%29%7D)
If n is an odd number, then p(x) can be any real number.
If n is an even number, then p(x) must be a non-negative number.
We have
![f(x)=\sqrt[3]{2x^2-3x-9}](https://tex.z-dn.net/?f=f%28x%29%3D%5Csqrt%5B3%5D%7B2x%5E2-3x-9%7D)
n = 3 → odd number.
Therefore the domain is the set of all real numbers.
Answer:
What exactly do you mean by probability?
Answer:
7÷72
Step-by-step explanation:
First take lcm of the denominator
Then solve
(13*4-5*9)/73
52-45/72
7/72