Question
Part 1 of 6 A simple random sample of size n is drawn from a population that is normally distributed. The samplemean, x, is found
Part 1 of 6
A simple random sample of size n is drawn from a population that is normally distributed. The samplemean, x, is found to be 115, and the sample standarddeviation, s, is found to be 10.
(a) Construct an 80% confidence interval about if the samplesize, n, is 16.
(b) Construct an 80% confidence interval about if the samplesize, n, is 24.
(c) Construct a 95% confidence interval about if the samplesize, n, is 16.
(d) Could we have computed the confidence intervals in parts(a)-(c) if the population had not been normallydistributed?
view the table of areas under thet-distribution.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started