Question: Assume a Normal distribution with = 10. We collect a random sample of size a = 400 which resulted in the following 95% CI for

Assume a Normal distribution with = 10. We collect a random sample of size a = 400 which resulted in the following 95% CI for . (082, 2.78) What is the value of xbar ? Would we reject or accept Ho: = 0 versus Ha: 0 Explain your answer.

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