Answer:
The confidence interval for the true mean calorie content is
Step-by-step explanation:
In this problem we know the mean and standard deviation fo the sample, so we can compute the CI like this:
We need to determine t for 10-1=9 degrees of freedom and 99% confidence level. We look up in the t-table and the value for t is 3.2498.
Then we can calculate the limits of the CI:
Answer:
Step-by-step explanation:
Given :You have 36 apples to share with your friends.
To Find: if each friend gets exactly 2 apples, which equation could you use to solve for the number of friends ,n?
Solution :
Since there are 36 apples
There are n friends
Since each friend gets 2 apples.
So, n friends get apples= 2n
Thus equation becomes:
⇒
⇒
⇒
Thus there are 18 friends
Hence , Equation could you use to solve for the number of friends n: