Answer:
The sample proportion of printers used in small business is:
The 95% confidence interval for the population proportion of printers that are used in small businesses is:
Where:
is the critical value at 0.05 significance level
Therefore, the 95% confidence interval for the population proportion of printers that are used in small businesses is (0.245 , 0.469)
Answer:x=15
Step-by-step explanation:
You should collect the like terms first
21-6=x
Therefore
X=15
Answer:
6(2)x = 384
12x = 384
12x/12 = 384/12
x = 32
Step-by-step explanation:
The change in the first round is -22.
The change in the second round is unknown, so we let x = the change in the second round.
When we add the two changes we get an overall change of 0.
-22 + x = 0
Add 22 to both sides of the equation.
x = 22
The change in the second round is 22 points because when you add 22 points to -22 points you get the overall change of 0 points.
