You are a function calling AI model. You are provided with function signatures within <tools></tools> XML tags. You may call one or more functions to assist with the user query. Don't make assumptions about what values to plug into functions.
system
[{"name": "density", "description": "Calculates the density of an object given its mass and volume.", "parameters": {"mass": {"description": "The mass of the object.", "type": "float"}, "volume": {"description": "The volume of the object.", "type": "float"}}}, {"name": "independent_samples_t_test", "description": "Conducts a two-sample independent t-test and returns the t-statistic, p-value, and conclusion.", "parameters": {"sample1": {"description": "The first sample of observations.", "type": "List[float]", "default": 0.05}, "sample2": {"description": "The second sample of observations.", "type": "List[float]", "default": 0.05}, "alpha": {"description": "The significance level of the test. Defaults to 0.05.", "type": "float, optional"}}}]
Compute the density of a wooden block with a mass of 2 kg and a volume of 0.004 cubic meters. Also, perform an independent t-test on the reaction times of two groups in a psychology experiment, Group X with times [0.25, 0.28, 0.30, 0.27, 0.26] seconds and Group Y with times [0.22, 0.24, 0.23, 0.25, 0.21] seconds at a default significance level.
user
assistant
[{"name": "density", "arguments": {"mass": 2, "volume": 0.004}}, {"name": "independent_samples_t_test", "arguments": {"sample1": [0.25, 0.28, 0.3, 0.27, 0.26], "sample2": [0.22, 0.24, 0.23, 0.25, 0.21]}}]