You just have to divide the number of blocks walked by the number of hours
48 / 3 = 16 blocks per hour
Zero. The negative one means arctan. Arctan times 0 is 0.
Answer:
-2
Step-by-step explanation:
its -2 because is a neg. number. the more the number is in neg. the lesser it is
Answer:
D is the answer
Step-by-step explanation:
don't froget my cake!! :)
<u>Answer:</u>
<u>Null hypothesis: Policy B remains more effective than policy A.</u>
<u>Alternate hypothesis: Policy A is more effective than policy B.</u>
<u>Step-by-step explanation:</u>
Remember, a hypothesis is a usually tentative (temporary until tested) assumption about two variables– independent and the dependent variable.
We have two types of hypothesis errors:
1. A type I error occurs when the null hypothesis (H0) is wrongly rejected.
That is, rejecting the assumption that policy B remains more effective than policy A when it is <em>actually true.</em>
2. A type II error occurs when the null hypothesis H0, is not rejected when it is actually false. That is, accepting the assumption that policy B remains more effective than policy A when it is <em>actually false.</em>
