SOLUTION: I am having trouble grasping the confidence intervals. My question is... Would I still be able to use a sample of 10? My guess would be yes, but the bigger the sample size the

Algebra ->  Probability-and-statistics -> SOLUTION: I am having trouble grasping the confidence intervals. My question is... Would I still be able to use a sample of 10? My guess would be yes, but the bigger the sample size the      Log On


   

Question 1046979: I am having trouble grasping the confidence intervals. My question is...
Would I still be able to use a sample of 10? My guess would be yes, but the bigger the sample size the more accurate it is to the population.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
As to Margin of Error and Confidence Intervals
CI = mean - ME <+mu+< mean + ME
ME = z%28alpha%2Fsqrt%28n%29%29 alpha being the population standard of deviation
Or
ME = t%28s%2Fsqrt%28n%29%29 s being the standard deviation of the sampled data,
t-value a corrected value by sample size: (n-1) used
Regardless which of the above are used...knowing the Population Standard Deviation or not...
Smaller the n, the Larger the Margin of Error will be.
ME = t%28s%2Fsqrt%2810%29%29 ME will be Larger than for ex. t%28s%2Fsqrt%28100%29%29