To apply Central Limit Theorem on sample proportions in One
To apply Central Limit Theorem on sample proportions in One Sample Proportion test, the sample size and the population proportion under null hypothesis need to satisfy certain conditions. Which of the following scenarios meet the requirement?
| The sample size is 36 and the population proportion under null hypothesis is 25%. |
Solution
Answer to the question)
The conditon is : n*p > 10 & n*(1-p) > 10
.
1) 36*0.25 = 9 is not greater than 10
2) 48 * 0.80 = 38.4 > 10 & 48*(1-0.8) = 9.6 is not greater than 10
3) 99*0.90 = 89.1 > 10 & 99 * (1-0.9) = 9.9 is not greater than 10
4) 200*0.06 = 12 > 10& 200*(1-0.06) = 188 > 10
Thus the fourth option meets the requirement
