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:
A camera was on sale for 30% off, and the discount was $48. What was the original price of the camera
The markup on a camera was $48 at a rate of 30%. What was the wholesale price of the camera?
Are your answers.
Step-by-step explanation:
The ratio to oranges to apples is 2:3,2-3 or 2 to 3
Hopes this helps