<u>Answer with explanation:</u>
As per given , we have
A sample of 50 gribbles finds an average length of 3.1 mm with a standard deviation of 0.72.
i.e. n= 50
Degree of freedom = n-1=49


The point estimate of the population mean is equals to the sample mean.
i.e. The best estimate for the length of gribbles= 3.1 mm
Also, population standard deviation is unknown , then the confidence interval would be :

For df= 49 and significance level of 0.05 , the t- value (using t-distribution table) would be :

Now, Margin of error : 

95% confidence interval : 

It is 225. Because you do the volume of one rectangular prism the equation is 15 x 3 x 3 which gives you 135. Then you do the volume of the other rectangular prism the equation is 10 x 3 x 3 which gives you 60. Then you add 135 + 90 that then gives you the total volume which is 225.
Answer:
4.3
Step-by-step explanation:whats the answers?
and what is the question
Wesley ran a total of 2 miles.
Answer:
14
Explanation:
Given:
Volume of the prism = 3360 units^3
To find:
The height of the prism
We'll use the below formula to determine the height(h) of the prism;

So the height of the prism is 14