Answer:
[22.57 ± 2.776]
Step-by-step explanation:
Hello!
You have the 95% Confidence Z-interval (21.182;23.958), the mean X[bar]= 22.57 and the sample size n=25.
The formula for the Z interval is
[X[bar] ± ]
The value of Z comes from tha standard normal table:
The semiamplitude (d) or margin of error (E) of the interval is:
E or d= (Upperbond- Lowerbond)/2 = (23.958-21.182)/2 = 2.776
[X[bar] ± E]
[22.57 ± 2.776]
I hope it helps!
Answer:
8 finger puppets.
Step-by-step explanation:
If the puppets both have the same number of buttons, you have to find the largest number that will fit into both numbers. In this case that would be 8:
2 red and 3 blue buttons per puppet.
Answer:
Step-by-step explanation:
x^2 = 256 + 12^2
<h3>Formula:- </h3>
<h3>Substituting the values:- </h3>
:
: