Answer:
Option D. We are 95% confident that the mean amount spent on electric service among the 160 households is between $151 and $216.
Explanation:
A confidence interval is a range of values, derived from the sample statistics, which may include the value of an unknown population parameter.
A 95% confidence interval indicates that between 152 of 160 samples (95%) of the same population will produce confidence intervals that will contain the population parameter.
It also means that we have a 95% confidence that the average (average amount) is among the resulting amounts obtained.
Logically, option "D" is missing the final part. This would be: D. We are 95% confident that the mean amount spent on electric service among the 160 households is between $ 15.
This is the only true option, since the test is based on a sample of only 160 households, the entire population of households cannot be included.
Hence, the correct option is:
Option D. We are 95% confident that the mean amount spent on electric service among the 160 households is between $151 and $216.
Answer: the answer is 90.0
Explanation:
From the question above, we are given:
G = 11
I = 4
X = M = 0
Consumption function is:
C = k + cY
Where:
k = 3
c = 0.8
The GDP of a nation is given as:
Y = C + I + G + NX
By imputing the values into the GDP equation, we have:
Y = k + cY + 4 + 11 + 0
Y = 3 + 0.8Y +15
Y - 0.8Y = 18
0.2Y = 18
Y = 90.0
Answer:
The answer to this question is E.database.
Explanation:
The answer will be C . Internal Labor Markets
