Question: Suppose this study is replicated 1,000 times, and each time 173 individuals randomly selected from the same population are randomized to receive Acupuncture. For each

Suppose this study is replicated 1,000 times, and each time 173 individuals randomly selected from the same population are randomized to receive Acupuncture. For each of these 1,000 samples, the sample mean headache severity score (at 3 months post-randomization) is computed. A histogram is then created with these 1,000 sample mean values. Which of the following statements best describes this histogram?

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