Answer:
acute
Step-by-step explanation:
cause
Answer:
Option B) Reject null hypothesis
Step-by-step explanation:
We are given the following in the question:
We are given the null hypothesis:



Two tailed z-test
Now, 
Since,
The calculated z-statistic does not lie in the acceptance region, we fail to accept and reject the null hypothesis.
Left-tailed z-test
Now, 
Since,

We fail to accept and reject the null hypothesis.
Right-tailed z-test
Now, 
Since,

We fail to accept and reject the null hypothesis.
Answer:
200
Step-by-step explanation:
Answer:
10 + 30
Step-by-step explanation:
10-1(-30)
10+1(30)
10+30
Answer:
7/10
Step-by-step explanation:
0.7 = %70 = 7/10 this needs to be 20 characters long but this is kind of an explanation