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A researcher is investigating the effect of hypnosis on remembering The deep hypnosis group created was 17 people and the light hypnosis group was

A researcher is investigating the effect of hypnosis on remembering The deep hypnosis group created was 17 people and the light hypnosis group was 15 people. The mean of remembering details was 23 for group 1, 20 for group 2, and the variance was 9 and 75, respectively. Estimate whether there is a true difference between these two groups using the confidence interval at the 0.05 level

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