The number of students in a typical non-lecture hall university class is normally distributed with σ = 3.5. If a sample
Posted: Wed May 11, 2022 6:44 am
The number of students in a typical non-lecture hall university
class is normally
distributed with σ = 3.5. If a sample of 50 classes was taken, and
the sample mean
class size was 26.2, set up the following confidence intervals for
μ:
(a) a 99 % confidence interval;
(b) a 95% confidence interval;
(c) a 90% confidence interval.
class is normally
distributed with σ = 3.5. If a sample of 50 classes was taken, and
the sample mean
class size was 26.2, set up the following confidence intervals for
μ:
(a) a 99 % confidence interval;
(b) a 95% confidence interval;
(c) a 90% confidence interval.