500
The owners of Leximax bookstore would like to understand the reading habits of their customers. Bookstore employees asked 175 randomly selected customers about the books they read last month. The owners found a
99%
confidence interval of (3.5,4.3) for the mean number of books its customers read last
month.
Why is the following conclusion not valid?
There is a 99% chance that the mean number of books Leximax customers read last month is in the interval (3.5,4.3)
The population mean is the average number of books all Leximax customers read last month, not just the ones in the sample.
The population mean is a specific number even though you don't know its value. It is not up to chance whether a specific number is inside the confidence interval (3.5,4.3)
The number is either in the interval or not.