Answer Happy

Posted: **Tue Nov 23, 2021 9:39 am**

: 4 It Is Claimed That The Standard Deviation For A National Placement Test Is 100 A College Professor Feels That This I 1 (28.63 KiB) Viewed 151 times

4. It is claimed that the standard deviation for a national placement test is 100. A college professor feels that this is too low, so he samples 300 scores and finds the sample standard deviation to be 110. Using a = 0.05, is the professor correct?