Answer:
Step-by-step explanation:
I think your question is missed of attach the photo of the box, allow me to add in and hope it will fit the original one
Here is my answer:
Let A is the surface area of the box
As we know that the surface area will be the sum of the four rectangular sides' areas and the base area (because this box is opened)
A = x² + 4xh
<=> (A - x²)/4x = h
and the volume formula is:
V = x²h
Substitute h from the formula of A to the formula of the Volume, we have:
V = (x²) * (A - x²)/4x
V = (Ax - x³)/4
Hope it will find you well.
If 19 out of 28 renters keep a pet, there are renters who don't keep a pet.
Whenever you have a subset of some set, and you want to know which percentage of the set the subset represents, you simply have to compute
So, in your case, you're wondering what percentage of 28 does 9 represent. So, the formula becomes
Answer:
And the confidence interval would be given by:
And since the confidence interval contains the value 0 we have enough evidence to conclude that we don't have significant differences between the two means at 10% of significance.
Step-by-step explanation:
For this case we have the following info given :
represent the sample mean for the scores of the undergraduate students
represent the standard deviation for the undergraduate students
the sample size for the undergraduate
represent the sample mean for the scores of the high school students
represent the standard deviation for the high school students
the sample size for the high school
The confidence interval for the true difference of means is given by:
The degrees of freedom are given by:
The confidence level is 90% and the significance level is and
then the critical value would be:
And replacing the info we got:
And the confidence interval would be given by:
And since the confidence interval contains the value 0 we have enough evidence to conclude that we don't have significant differences between the two means at 10% of significance.