Describe situations where the confidence interval for the mean might be too long or too short. Contrast this with confidence intervals for the 20% trimmed mean and µ m . Compute a .95 confidence...

Describe situations where the confidence interval for the mean might be too long or too short. Contrast this with confidence intervals for the 20% trimmed mean and µ_m.

Compute a .95 confidence interval for the mean, 10% mean, and 20% mean using the lifetime data listed in the example of Section 4.6.2. Use both Eq. (4.3) and the bootstrap-t method.