True or False: Given a sample mean of 2.1 and a population standard deviation of 0.7 from a
sample of 10 data points, a 90% confidence interval will have a width of 2.36.

Question

Quizplus · Accepted Answer

The width of a confidence interval is calculated using the formula: CI width = 2 * Z * (σ/√n), where Z is the Z-score for the confidence level, σ is the population standard deviation, and n is the sample size. For a 90% confidence interval, Z is approximately 1.645. Plugging in the values, the width is not 2.36.

True or False: Given a Sample Mean of 2