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:
9
Step-by-step explanation:
g(4)=4^2 =16, so we need to find f(16).
f(16)=16-7=<u>9</u>
Answer:
113.04 cm^2
Step-by-step explanation:
To find the area, you do radius squared, multiplied by 
Radius is half of the diameter. 12/2 is 6
6^2×3.14=113.1
Answer:
y=22/45
Step-by-step explanation:
y=3/5-1/9
y=(27-5)/45
y=22/45
Answer:
13.05MbpS < x < 22.15 Mbps
Step-by-step explanation:
Confidence interval CI can be expressed in the form;
Lower bound < x < upper bound
Given;
CI = (13.046, 22.15)
Lower bound = 13.046 = 13.05 Mbps (to two s.f.)
Upper bound = 22.15 Mbps
So, the Confidence interval is given as;
13.05 MbpS < x < 22.15 Mbps
