Question

True or false. If all other factors are held constant, an 80% confidence interval is wider than a 90% confidence interval.

Answer 1

False. An 80% confidence interval is narrower than a 90% confidence interval.

Step-by-step explanation:

False. If all other factors are held constant, an 80% confidence interval is narrower than a 90% confidence interval.

Confidence intervals measure the range of values within which we are confident the true population parameter lies. A narrower confidence interval indicates greater precision and more confidence in the estimate. A wider confidence interval, on the other hand, includes a larger range of possible values and provides less precision and confidence in the estimate.