We would like to estimate the difference μA−μB in the true mean pH levels in two lakes. Samples of water specimens are collected from each lake and the pH level of each specimen is measured. Some summary statistics are shown below:
Sample Size Mean Standard Deviation
Lake A 5 7.4 0.12
Lake B 4 7.1 0.28
Assume that pH levels are known to follow normal distributions for both lakes. The margin of error for a 95% confidence interval for μA−μB is:
The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/mathematics-answer-84956.pdf
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
Finding a professional expert in "partial differential equations" in the advanced level is difficult.
You can find this expert in "Assignmentexpert.com" with confidence.
Exceptional experts! I appreciate your help. God bless you!
Comments
Leave a comment