Answer:
the answer is c
Step-by-step explanation:
Answer:
. This means that in the second month, the company will sell 24.24 millions of dollars in total.
. This means that in the second month the total sales will increase in 11.36 millions of dollars from the previous month.
d. The total sales 11 months from now will be $203.43 million dollars.
Step-by-step explanation:
The total sales of the company, in millions of dollars is given by the following formula:
![S(t) = 0.03t^{3} + 0.5t^{2} + 9t + 4](https://tex.z-dn.net/?f=S%28t%29%20%3D%200.03t%5E%7B3%7D%20%2B%200.5t%5E%7B2%7D%20%2B%209t%20%2B%204)
This function has the following derivative, which represents the variation in relation to the previous month.
![S'(t) = 0.09t^{2} + t + 9](https://tex.z-dn.net/?f=S%27%28t%29%20%3D%200.09t%5E%7B2%7D%20%2B%20t%20%2B%209)
Find S(2) and S'(2)
![S(t) = 0.03t^{3} + 0.5t^{2} + 9t + 4](https://tex.z-dn.net/?f=S%28t%29%20%3D%200.03t%5E%7B3%7D%20%2B%200.5t%5E%7B2%7D%20%2B%209t%20%2B%204)
![S(2) = 0.03*(2)^{3} + 0.5*(2)^{2} + 9*2 + 4 = 24.24](https://tex.z-dn.net/?f=S%282%29%20%3D%200.03%2A%282%29%5E%7B3%7D%20%2B%200.5%2A%282%29%5E%7B2%7D%20%2B%209%2A2%20%2B%204%20%3D%2024.24)
. This means that in the second month, the company will sell 24.24 millions of dollars in total.
![S'(t) = 0.09t^{2} + t + 9](https://tex.z-dn.net/?f=S%27%28t%29%20%3D%200.09t%5E%7B2%7D%20%2B%20t%20%2B%209)
![S'(2) = 0.09*2^{2} + 2 + 9 = 11.36](https://tex.z-dn.net/?f=S%27%282%29%20%3D%200.09%2A2%5E%7B2%7D%20%2B%202%20%2B%209%20%3D%2011.36)
. This means that in the second month the total sales will increase in 11.36 millions of dollars from the previous month.
Choose the correct interpretation of S(11)=203.43.
S represents total sales, and S(11) is the total sales 11 months from now.
So the correct answer is:
d. The total sales 11 months from now will be $203.43 million dollars.
Using the z-distribution, the p-value would be given as follows:
b) 0.0086.
<h3>What are the hypothesis tested?</h3>
At the null hypothesis we test if the means are equal, hence:
![H_0: \mu_D - \mu_C = 0](https://tex.z-dn.net/?f=H_0%3A%20%5Cmu_D%20-%20%5Cmu_C%20%3D%200)
At the alternative hypothesis, it is tested if they are different, hence:
![H_1: \mu_D - \mu_C \neq 0](https://tex.z-dn.net/?f=H_1%3A%20%5Cmu_D%20-%20%5Cmu_C%20%5Cneq%200)
<h3>What are the mean and the standard error for the distribution of differences?</h3>
For each sample, they are given as follows:
Hence, for the distribution of differences, they are given by:
.
<h3>What is the test statistic?</h3>
The test statistic is given by:
![z = \frac{\overline{x} - \mu}{s}](https://tex.z-dn.net/?f=z%20%3D%20%5Cfrac%7B%5Coverline%7Bx%7D%20-%20%5Cmu%7D%7Bs%7D)
In which
is the value tested at the null hypothesis.
Hence:
![z = \frac{\overline{x} - \mu}{s}](https://tex.z-dn.net/?f=z%20%3D%20%5Cfrac%7B%5Coverline%7Bx%7D%20-%20%5Cmu%7D%7Bs%7D)
![z = \frac{-2 - 0}{0.76}](https://tex.z-dn.net/?f=z%20%3D%20%5Cfrac%7B-2%20-%200%7D%7B0.76%7D)
z = -2.63.
Using a z-distribution calculator, for a two-tailed test, with z = -2.63, the p-value is of 0.0086.
Hence option B is correct.
More can be learned about the z-distribution at brainly.com/question/13873630
#SPJ1
Answer: 3/4 because the line runs through the points (0,-2) and (4,1).
rise/run
Answer:
B
Step-by-step explanation:
The value of the 4 in 14.8 is 10 times the value of the 4 in 3.46.