


Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Solutions to statistical analysis problems involving confidence intervals and hypothesis testing. Topics include setting confidence intervals for population means, testing hypotheses about population means, and comparing means between two populations.
Typology: Exams
1 / 4
This page cannot be seen from the preview
Don't miss anything!
c) How large a sample would be necessary in order that the margin of error of your 95% confidence interval be only .03? You may assume you have the results above to aid you. ANS: n = 944 d) In part c), suppose no preliminary estimate was available. Determine a sample size that would be adequate regardless of the true value of p.
Math 311 Fall 2008 Some Review Problems for Final
S = 2.44 S = 2.15 lbs
Ans: 3.6 lbs.
ANS: Use your 97.5% C.I. obtained by choosing the bottom half (because it reads in the same direction as
Ans:
ANS: Use your 90% two-sided C.I. Because ‘0’ is in this interval, cannot reject H 0 :.