Mathematics, 27.06.2019 14:40 chuchi24
Abuilding manager installs sensors to see how often people turn off the lights when they leave the room. after a month the manager has a sample size of 625, a sample mean of 47%, and a sample standard deviation of 5%. what is the confidence level for a confidence interval of 46.8% to 47.2%? a. 85% b. 99.7% c. 95% d. 68%
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