Answer:
Step-by-step explanation:
A tariff is a tax imposed by a government of a country or of a supranational union on imports or exports of goods. Besides being a source of revenue for the government, import duties can also be a form of regulation of foreign trade and policy that taxes foreign products to encourage or safeguard domestic industry
Answer:
1.16ft tall.
Step-by-step explanation:
168/144= 1.16 ft tall
or rounded to the nearest number = 1.20 ft.
SOLUTION:
Case: Hypothesis testing
Step 1: Null and Alternative hypotheses
![\begin{gathered} H_0:\mu=P127.50 \\ H_1:\mu\leq P127.50 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20H_0%3A%5Cmu%3DP127.50%20%5C%5C%20H_1%3A%5Cmu%5Cleq%20P127.50%20%5Cend%7Bgathered%7D)
Step 2: T-test analysis
![\begin{gathered} t=\frac{\hat{x}-\mu}{\frac{s}{\sqrt{n}}} \\ t=\frac{135-127.5}{\frac{75.25}{\sqrt{450}}} \\ t=2.144 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20t%3D%5Cfrac%7B%5Chat%7Bx%7D-%5Cmu%7D%7B%5Cfrac%7Bs%7D%7B%5Csqrt%7Bn%7D%7D%7D%20%5C%5C%20t%3D%5Cfrac%7B135-127.5%7D%7B%5Cfrac%7B75.25%7D%7B%5Csqrt%7B450%7D%7D%7D%20%5C%5C%20t%3D2.144%20%5Cend%7Bgathered%7D)
Step 3: t-test with the significance level
![\begin{gathered} t_{\alpha}=? \\ \alpha=0.05 \\ From\text{ }tables \\ t_{0.05}=1.654 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20t_%7B%5Calpha%7D%3D%3F%20%5C%5C%20%5Calpha%3D0.05%20%5C%5C%20From%5Ctext%7B%20%7Dtables%20%5C%5C%20t_%7B0.05%7D%3D1.654%20%5Cend%7Bgathered%7D)
Step 4: Comparing
![t>t_{\alpha}](https://tex.z-dn.net/?f=t%3Et_%7B%5Calpha%7D)
So tail to reject the null hypothesis. There is enough evidence at a 0.05 level of significance to claim that the mean spent is greater than P127.50.
Final answer:
Yes, there is evidence sufficient to conclude that the mean amount spent is greater than P127.50 per month at a 0.05 level of significance.
First keep in mind that the given value is negative and that it is
greater than or
equal to whatever '<em>v</em>' is.
![-8.3 \geq v - 1.9](https://tex.z-dn.net/?f=-8.3%20%20%5Cgeq%20v%20-%201.9)
When solving for a variable in any equation, you do something to both sides in order to keep it equal. Here, <em>v</em> is being subtracted by 1.9; therefore we can
add 1.9 to both sides in order to isolate <em />the variable.
![-8.3 + 1.9 \geq v - 1.9 + 1.9](https://tex.z-dn.net/?f=-8.3%20%2B%201.9%20%20%5Cgeq%20v%20-%201.9%20%2B%201.9)
![-6.4 \geq v](https://tex.z-dn.net/?f=-6.4%20%5Cgeq%20v)
Despite not needing a value for the question, it is worth noting that since this is an inequality, <em>v </em>can be any value from -6.4 to ∞ in order to make it true.