Question: If a random sample of 41 items produces and = 128.4 and s = 20.6, what is the 98% confidence interval for ? Assume

If a random sample of 41 items produces and ẍ = 128.4 and s = 20.6, what is the 98% confidence interval for µ? Assume x is normally distributed for the population. What is the point estimate?

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