The result of 8(26) after using the distributive property?
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Answer:
Margin of error in 95% confidence level is 9,05 IQ points.
Step-by-step explanation:
margin of error (ME) around the mean using the formula
ME= where
- z is the corresponding statistic in the given confidence level(z-score or t-score)
- s is the standard deviation of the sample(or of the population if it is known)
- N is the sample size
Population standard deviation of IQ scores for all children with this particular type of learning disorder is assumed 15.
If the empirical rule is used, 95% confidence interval is 2 standard deviations around the mean. If we use the formula:
ME= ≈ 9,05