Answer:
An ANOVA test
Step-by-step explanation:
You will use the ANOVA test, which is a test that compares the means of more than 2 samples. Since the teacher used 3 test groups, she would have to use this test if she wanted to do a hypothesis test to determine if the means are equal.
*This test only tells us if the means are equal, it won't say which is greater than the other. You would have to do 3 individual hypothesis tests comparing 2 means at a time in order to determine that.
Answer:
A
Step-by-step explanation:
2 cubes horizontal, 3 cubes (down) vertical, 2 cubes horizontal.
No. Of times bee beats in 1 sec=250
Average time =?
Frst find how many times bee beats in 1 min.
No. Of times bee beats in 1 min= 250*60=15000
Average time= 15000/ 250
Average time=60 times
Answer:
12
Step-by-step explanation:
Use pythag to solve.
x^2+5^2=13^2
x=12
Option D should be your answer.
No combo of any of those angles add up to exactly 180 to suggest that they are parallel lines.
