Answer:
C
Step-by-step explanation:
Stay safe hope this helps
1 and 8
because they are exterior angles because they are on the outside and alternate because they are on opposite sides
Answer:
1. 47
2: 23
3: I want to say 51 not for sure though
Step-by-step explanation:
Hope this helps:)
Answer:
4
Step-by-step explanation:
Using the t-distribution, we have that the 95% confidence interval for the true mean number of pushups that can be done is (9, 21).
For this problem, we have the <u>standard deviation for the sample</u>, thus, the t-distribution is used.
- The sample mean is of 15, thus
. - The sample standard deviation is of 9, thus
. - The sample size is of 10, thus
.
First, we find the number of degrees of freedom, which is the one less than the sample size, thus df = 9.
Then, looking at the t-table or using a calculator, we find the critical value for a 95% confidence interval, with 9 df, thus t = 2.2622.
The margin of error is of:

Then:

The confidence interval is:

Then


The confidence interval is (9, 21).
A similar problem is given at brainly.com/question/25157574