Answer the following questions online by checking either Tru

Answer the following questions on-line by checking either True or False.
(a) A condence interval for a population mean is always symmetric and centered around the sample mean. (b) There is a 95% chance that the sample mean of a second sample from the same population is in the range ¯ x±1.96 n where ¯ x is the sample mean of the current sample. (c) Before taking a random sample, there is a 95% chance that the sample mean of a sample from a population with mean µ is in the range µ±1.96 n.

Solution

a) true

b) false

c) true