Answer
a. True
Step-by-step explanation:
Based on this survey we estimate that about of the college students smokes. And a confidence interval is . So we know that our estimative for the smoking rate is in the confidence interval with certainty. We also know the estimative for the smoking rate in the general population is . So we can write the two possible hypothesis:
Smoking rate is equal to .
Smoking rate is not equal to .
We will reject the null hypothesis if the estimate doesn't fall into the confidence interval for the college students smoking rate.
Since this condition holds we reject the null hypothesis. So with certainty we say that the smoking rate for the general population is different than the smoking rate for the college students.
Answer:
C
Step-by-step explanation:
Answer: 138°
Step-by-step explanation: since the line is crossing parallel lines the number opposite of your x is the same as 138°
5.4x10^11 metres per second or 540,000,000,000 metres per second
Answer:
A
Step-by-step explanation: