Given Information:
Population proportion = p = 0.55
Sample size 1 = n₁ = 30
Sample size 2 = n₂ = 100
Sample size 3 = n₃ = 1000
Required Information:
Standard error = σ = ?
Answer:



Step-by-step explanation:
The standard error for sample proportions from a population is given by
Where p is the population proportion and n is the sample size.
For sample size n₁ = 30



For sample size n₂ = 100



For sample size n₃ = 1000



As you can notice, the standard error decreases as the sample size increases.
Therefore, the greater the sample size lesser will be the standard error.
228/12 = 19. To check, turn it into multiplication, by doing 19 * 12, which equals 228.
Hope this helps! ☺♥
Answer:
please see explanation.
Step-by-step explanation:
2268×2=4536
2268×3=6804
2268×4=9072
2268x5=11340
2268×6=13608
2268×7=15876
from the computation 15848 is a perfect square
√15848= 126
to calculate the 126= ✓126=11.225