Question: A researcher has constructed an 80% confidence interval of 45 ±8, using a sample of n = 25 scores.

1. What would happen to the width of the interval if the researcher had used a larger sample size? (Assume other factors are held constant.)
2. What would happen to the width of the interval if the researcher had used 90% confidence instead of 80%? c. What would happen to the width of the interval if the sample variance increased? (Assume other factors are held constant.)
   
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