Question

A building manager installs sensors to see how often people turn off the lights when they leave a room. After a month the manager has sample size of 900, a sample mean of 47%, and a sample standard deviation of 6%. What is the confidence level for a confidence interval of 46.4% to 47.6%? A. 85% B. 95% C. 68% D. 99.7%

Answer 1

The confidence level for a confidence interval of 46.4% to 47.6% is 99.7%.

In statistics, a confidence interval (CI) is a type of interval estimate of a population parameter.

The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.