Answer:
25 x .06 = 1.5
25 - 1.5 = 23.5
Answer = $23.50
Step-by-step explanation:
Answer:
-3 is to the left of -2.5, while -2.5 is to the right of -3. This means that -3 is less than -2.5
Answer:
a)
And rounded up we have that n=543
b)
And rounded up we have that n=1509
c)
And rounded up we have that n=13573
Step-by-step explanation:
For this case since we don't have previous info we can assume that the best estimator for the true proportion is ![\hat p =0.5](https://tex.z-dn.net/?f=%5Chat%20p%20%3D0.5)
The margin of error for the proportion interval is given by this formula:
(a)
Part a
The significance level is
The critical value would be for this case:
![z_{\alpha/2}= 2.33](https://tex.z-dn.net/?f=z_%7B%5Calpha%2F2%7D%3D%202.33)
And on this case we have that
and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
And replacing into equation (b) the values from part a we got:
And rounded up we have that n=543
Part b
And rounded up we have that n=1509
Part c
And rounded up we have that n=13573
The answer is 3:1! Because they have 6 beach balls which simplifies to 3 and 3 goggles which simplifies to 1!