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need help with question in pic please Suppose we want to detect a difference in mean cholesteml values of 12 units between two treatments {new

need help with question in pic please

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Suppose we want to detect a difference in mean cholesteml values of 12 units between two treatments {new treatment and old treatment} with 95% power using the two-sample ttest {MDSided] at the CLUE level of signicance. Assume the standard deviation tilt the response ow to be en. Use equal allocation. What is the sample size required

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