Answer:
Between 23.77% and 56.23%
Step-by-step explanation:
On your TI-84
Press STAT
Use right arrow to scroll over to highlight TESTS
Use down arrow to scroll down to A:1-PropZInt...
Press ENTER
Make the screen read
x:14
n:35
C-Level:0.95
Calculate
highlight Calculate
Press ENTER
See this:
(.2377,.5623)
p(hat)=.4
n=35
The confidence interval is 0.2377 < p < 0.5623
Between 23.77% and 56.23%
Answer:
s ≥ 170
Step-by-step explanation:
The problem raises the following statement: "The cruising speed of the bullet train will be at least 170 miles per hour"
Which means that the train has a speed of 170 miles for now or higher, knowing this we can pose the inequality.
Knowing that "s" is the train's cruising speed (in miles per hour), we have to:
s ≥ 170
This would be the inequality that the statement represents.
hope this helps! ask if you have anymore questions
Drag the decimal any number n towards the right and divide by 10^n
