Hi guys, this is my first time posting here. Please help me to answer this question.
Q: In a sample of 100 subjects, the sample mean of sleeping hours is 9.4 and the sample standard deviation is 8.41 . if we know that the average sleeping hours for the population from which the sample was taken is 8 hours; specify whether the difference between the sample and the population is real difference or merely an apparent difference.
I have to submit the answer tomorrow and will lose 10 marks if i didn't! >.<"
Thanks in advance
Q: In a sample of 100 subjects, the sample mean of sleeping hours is 9.4 and the sample standard deviation is 8.41 . if we know that the average sleeping hours for the population from which the sample was taken is 8 hours; specify whether the difference between the sample and the population is real difference or merely an apparent difference.
I have to submit the answer tomorrow and will lose 10 marks if i didn't! >.<"
Thanks in advance