A 95% confidence interval was computed around a sample mean of 10. The resulting confidence interval is (5, 11). Does this appear to be a valid confidence interval

No

Step-by-step explanation:

It is computed by considering sample mean in the center.

But here 10 does not lie in the center of  (5, 11), as distance between 10 and 5 = 5 units but  distance between 10 and 11 = 1 unit

2 different margin of errors cannot be possible.

Hence, the given confidence interval is not valid.

ryan had a head start of 10 meters.