Answer:348
Step-by-step explanation:
Answer:
Step-by-step explanation:
I'm pretty sure the answer is C sorry if I'm wrong
Fourths, then b. Sorry if late.
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.
Answer:
3.8s
Step-by-step explanation:
Solve for h=0, you will get t=3.75