Mathematics, 14.04.2020 18:41, gennhill14
A survey of 200 students provides a sample mean of 7.10 hours worked with a standard deviation of 5 hours. Suppose that this confidence interval was (6.82, 7.38). Which of these is a valid interpretation of this confidence interval?
A) There is a 95% probability that the true average number of hours worked by all UF students is between 6.82 and hours.
B) There is a 95% probability that a randomly selected student worked between 6.82 and 7.38 hours.
C) We are 95% confident that the average number of hours worked by students in our sample is between 6.82 and 7.38 hours.
D) We are 95% confident that the average number of hours worked by all UF students is between 6.82 and 7.38 hours.
Answers: 3
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