Answer:
The ( approximate ) probability that the investigator's procedure would produce an interval that would capture/surround the mean of the given population is 0.97
Step-by-step explanation:
97% confidence interval means that there is 97% chance that the true mean value of the population is within the range ( -9.3 , 15.3 ).
Confidence level (97%) is an indicator of your measurement's precision and tells you how sure you can be. In other words, if you repeat the process, it tells you how much percentage you get a result which falls in the estimated interval ( -9.3 , 15.3 ).