subject
Mathematics, 27.06.2019 14:40 destinydiamond6887

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%

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 20:30
4+(2+x) can you me solve this problem
Answers: 2
question
Mathematics, 21.06.2019 20:30
Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?
Answers: 1
question
Mathematics, 21.06.2019 23:00
72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.
Answers: 1
question
Mathematics, 21.06.2019 23:30
Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)
Answers: 1
You know the right answer?
Abuilding manager installs sensors to see how often people turn off the lights when they leave the r...
Questions
question
Physics, 05.09.2019 20:30
question
Mathematics, 05.09.2019 20:30
question
Chemistry, 05.09.2019 20:30
question
Mathematics, 05.09.2019 20:30
Questions on the website: 13722360