8^6 + 4^11 = 262144 + 4194304 = 4456448
4456448/17 = 262144 is the answer
Answer:
So the answer for this case would be n=67 rounded up
Step-by-step explanation:
Information given
represent the sample mean for the sample
population mean
represent the sample standard deviation
n represent the sample size
Solution to the problem
The margin of error is given by this formula:
(a)
And on this case we have that ME =400 and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The critical value for 98% of confidence interval now can be founded using the normal distribution. And the critical value would be , replacing into formula (b) we got:
So the answer for this case would be n=67 rounded up
I agree because when you multiply a positive number such as 1/10 by any negative number the result will always be negative.
26/24=x/10
26*100=x*24 (cross multiply)
2,600=34x (divide)
x=76.47
therefore 26 is 34% of 76.47