8 is the answer because it is the biggest number .
Answer:
The appropriate null hypothesis is 
The appropriate alternative hypothesis is 
Step-by-step explanation:
Exactly a year prior to this poll, in June of 2004, it was estimated that roughly 1 out of every 4 U.S. adults believed (at that time) that the war in Iraq was the most important problem facing the country.
At the null hypothesis, we test if the proportion is still the same, that is, of 
. So
We would like to test whether the 2005 poll provides significant evidence that the proportion of U.S. adults who believe that the war in Iraq is the most important problem facing the U.S. has decreased since the prior poll.
Decreased, so at the alternative hypothesis, it is tested if the proportion is less than 0.25, that is:
Answer:
No
Step-by-step explanation:
To solve this problem, plug the given coordinates in for x and y.
If x = -4 and y = 2, the inequality is 4(-4) + 5(2) < -7.
Evaluating 4*-4 and 5*2, the inequality becomes -16 + 10 < -7.
Evaluating -16 + 10, the inequality becomes -6 < -7.
-6 is not less than -7, so (-4, 2) is not a solution of the inequality.
Hi There.
Your answer would be
46, 48, 52, 52, 56, 57, 58, 61, 92
Answer:
The significance level of difference in fhe two means is indeed 0.26.
Step-by-step explanation:
To obtain the significance level, just standardize the mean in 2012 with the new mean and standard deviation.
The standardized score (z) is the value (x) minus the mean (xbar) then divided by the standard deviation (σ)
z = (x - xbar)/σ = (49007 - 49800)/3100 = - 0.26
Therefore, the significance level of difference is indeed 0.26.
