Author Question: Given that a 95 confidence interval is (6.5, 12.5), we can state that there is a 95 probability that ... (Read 60 times)

yoooooman · **on:** Jun 24, 2018

Given that a 95 confidence interval is (6.5, 12.5), we can state that there is a 95 probability that the true population mean is between 6.5 and 12.5.

Indicate whether the statement is true or false

Question 2

Nintendo Sony would like to test the hypothesis that a difference exists in the average age of users of a Wii, a PlayStation or an Xbox console game. The following data represent the age of a random sample of Wii, PlayStation, and Xbox users.

Wii PlayStation Xbox37 26 3131 21 2047 24 3829 24 3136 25 30The critical value for the Tukey-Kramer critical range using = 0.05 is ________.A) 3.08
B) 3.11
C) 3.77
D) 3.83