Tamia's Z-score of 1.0 means that her test score is 1 standard deviation above the mean.

Since the problem is asking for how many standard deviations Tamia's test score is above the mean, the answer is simply:

1.0 standard deviation above the mean.

Would you like further details or have any additional questions?

Here are 5 related questions you might consider:

1. How do you calculate a Z-score in general?
2. What does it mean for a distribution to be skewed to the left?
3. If Tamia’s Z-score was -1, how would that affect her position relative to the mean?
4. What is the relationship between Z-scores and probability?
5. How do outliers affect the mean and standard deviation?

Tip: A Z-score indicates how many standard deviations a data point is from the mean. Positive Z-scores are above the mean, and negative ones are below the mean.