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A researcher measures the mean time (in seconds) it takes two groups of children to complete a activity task. She finds that Group A (M
A researcher measures the mean time (in seconds) it takes two groups of children to complete a activity task. She finds that Group A (M = 22 seconds) completed the task more quickly than Group B (M = 36 seconds). She then computes a weighted mean for both groups combined and calculates = 31. Based on the information provided, which group had a larger sample size? Please show me how to solve this problem
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