Answer:
We are given:
Confidence level = 99%. Therefore, the critical value at 0.01 significance level using the standard normal table is given below:
Margin of error is given in the question as:
Since the previous proportion is not given, therefore, we need to assume
Therefore, the sample size is:
Therefore, 664 sample observations are required.
Answer:
Step-by-step explanation:
<h3> The complete exercise is attached.</h3>You can observe in the picture attached that the box is a rectangular prism.
The volume of a rectangular prism can be found with this formula:
Where "l" is the length, "w" is the width and "h" is the height.
You know that the lenght of each side of those cubes is 1 centimeter. Therefore, you can multiply the number of cubes on each side of the box by 1 centimeter in order to find the lenght, the width and the height of the box:
Now you can substitute the lenght, the width and the height of the box into the formula shown at the beginning of the explanation:
Finally, evaluating, you get that the volume of the box is:
Answer:
6cm
Step-by-step explanation:
Area of a square =
Where s = one side
s = ?
Square root both sides