Answer: 42.5
Step-by-step explanation:
9 x 3.5 = 31.5
2 x 2 = 4
2 x 2 / 2 = 2
2 x 5 / 2 = 5
31.5 + 4 + 2 + 5 = 42.5
Answer:
90% confidence interval -> {0.4529, 0.5871}
Step-by-step explanation:
<u>Check conditions for a 1-proportion z-interval:</u>
np>10 -> 150(0.52)>10 -> 78>10 √
n(1-p)>10 -> 150(1-0.52)>10 -> 72>10 √
Random sample √
n>30 √
For a 90% confidence interval, the critical value is z=1.645
The formula for a confidence interval is:
CI = p ± z√[p(1-p)/n]
<u>Given:</u>
p = 78/150 = 0.52
n = 150
z = 1.645
Therefore, the 90% confidence interval is:
CI = 0.52 ± 1.645√[0.52(1-0.52)/150] = {0.4529, 0.5871}
Context: We are 90% confident that the true proportion of all voters who
plan to vote for the incumbent candidate is contained within the interval
Answer:
21 for the first one, 144 for the second
Step-by-step explanation:
If you're seeing the same problem I am in class, the rule is: <em>N + 9</em>
N is equal to 12 in this equation
<em>12 + 9 is 21.</em>
So, the answer is 21
If there is a second problem, like there is for the one I'm seeing, then this is the answer for that-
Is <em>12(12)= </em>144
Hope this helps!
(By the way, I'm horrible at math so this could be completely wrong)
M<E = arcsin (opposite/hypotenuse)
m<E = arcsin (6/10)
Use the calculator:
m<E is estimated to be <span>37 degrees</span>