Using a calculator, the critical value of the t-distribution that should be used for a <u>95% confidence interval with 20 observations</u> is of t* = 2.0930.
<h3>How to find the critical value of the t-distribution?</h3>
A calculator is used, with two inputs:
- The number of degrees of freedom, which is one less than the sample size.
In this problem, we have a 95% confidence interval, with 20 - 1 = 19 df, hence the critical value is of t* = 2.0930.
More can be learned about the t-distribution at brainly.com/question/16162795
#SPJ1
If I were you, first i would make both into improper fraction and multiply top by top, bottom by bottom. Then i would simplify and you would get the answer.
Rewiew:
Top fraction by top
Bottom fraction by botton
Example:
Question 12.
12/3 X 19/8
228/24
= 9 1/2
Shift to the right c units means minus c from every x
shift up c units, means add c to whle function
7 right and 3 down
minus 7 from every x and minus 3 from whole function
new function=4(x-7)²-16-3 or
newfunction=4(x-7)²-19
Answer:
I guess that we want to find the displacement between Andrew's house and his uncle's house.
Assuming that he drove in a straight line, we can use the relationship:
Distance = Speed*Time.
We know that he drove for 6 hours, and the speed was 48 miles per hour, then the distance will be:
distance = 6h*48mi/h = 288 mi
This means that the total distance is 288 miles.
So, the album has 5 right hand pages of 4 photos each, that is 5*4=20 photos together.
It also has 5 left hand pages of 3 photos each, that is 5*3=15 photos together.
and all together it's 20+15, that is 35 photos.
