Determine if a Normal table or T-table should be used:
If you are dealing with quantitative data then you are working with means and you know the sample standard deviation, but not the population standard deviation then you need to use the
Normal table (with z-scores)
T-table
The table depends on if the sample standard deviation is known
Cannot be determined

Step 1 ：Determine if a Normal table or T-table should be used: If you are dealing with quantitative data then you are working with means and you know the sample standard deviation, but not the population standard deviation then you need to use the T-table. The table depends on if the sample standard deviation is known. The question is asking which table to use when dealing with quantitative data, where we know the sample standard deviation but not the population standard deviation. In statistics, when we know the sample standard deviation but not the population standard deviation, we use the T-table. This is because the T-table is designed to compensate for the uncertainty that comes from estimating the population standard deviation from a sample. The Normal table or Z-table is used when we know the population standard deviation. So, the answer should be T-table.

Step 2 ：Final Answer: \boxed{\text{T-table}}.