Answer:
C
Step-by-step explanation:
< is an open circle and graph C is the only one with an open circle
16 squared is 256 because if you multiply 16 times 16 you get 256
Answer: The value of test statistic is 2.442.
Step-by-step explanation:
Since we have given that
n = 238
Sample mean = 23.2 minutes
Standard deviation = 20.26 minutes
Hypothesis :

So, the test statistic value would be

Hence, the value of test statistic is 2.442.