Question
Mathematics Question on Standard deviation
Consider the following hypothesis test
H 0: μ>=16
Η 1: μ < 16
A sample of 36 provided a sample mean of 15.4. The population standard deviation is 3. The value of the test statistic 't' is.
A
-2.2
B
1.25
C
-1.2
D
1.42
Answer
-1.2
Explanation
Solution
The correct option is (C):1.25