Answer:
The appropriate answer is "0.9803".
Step-by-step explanation:
According to the question,
The probability of sample proportion differs from population proportion by les than 4% will be:
= 
= 
= 
= 
Answer:
H0: μ = 800
Ha: μ < 800
Step-by-step explanation:
The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.
For the case above;
Let μ represent the average number of customers visiting the dealership per day
The null hypothesis is that the average number of customers visiting the dealership per day is equal to 800
H0: μ = 800
The alternative hypothesis is that the average number of customers visiting the dealership per day is less than 800
Ha: μ < 800
Answer:
Step-by-step explanation:
Answer:
x = 2
Step-by-step explanation:
Given the 2 equations
2x + y = 3 → (1)
5x - 2y = 12 → (2)
Multiplying (1) by 2 and adding to (2) will eliminate the y- term
4x + 2y = 6 → (3)
Add (2) and (3) term by term
(5x + 4x ) +( - 2y + 2y) = 12 + 6 , that is
9x = 18 ( divide both sides by 9 )
x = 2
Answer:
Step-by-step explanation:
3 raised to 2 is 3 to the power of 2.
3 is multiplied by itself.
