Answer: 505
Step-by-step explanation:
The formula to find the sample size n , if the prior estimate of the population proportion (p) is known:
, where E= margin of error and z = Critical z-value.
Let p be the population proportion of crashes.
Prior sample size = 250
No. of people experience computer crashes = 75
Prior proportion of crashes 
E= 0.04
From z-table , the z-value corresponding to 95% confidence interval = z=1.96
Required sample size will be :
(Substitute all the values in the above formula)
(Rounded to the next integer.)
∴ Required sample size = 505

use this method when you do? - 14a + 200b + 16h = 1712
Answer:
3/11 = 6/22
Step-by-step explanation:
3*2=6.
so 11*2 = 22
Answer:
11th number is 6
Step-by-step explanation:
28 x 12 = 336
336 - 16 = 320
320 divided by 4 = 80
80
Lights