For a normal population with known variance s2, answer the following questions: (a) What is the...

For a normal population with known variance s2, answer the following questions:

(a) What is the confidence level for the interval: ?− 1.85?/√?≤ ?≤ ?+ 1.85?/√??

(b) What is the confidence level for the interval: ?≤ ?+ 1.4?/√?

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Expert Solution

From this table i have take the value of phi (probability ) from the value of t ..

Ally Wells answered 1 year ago

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