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A sample of new Widener Engineering graduatesreveals an average starting salary of $74,000, with = $9,000 & n = 25,compute an interval estimate for their

A sample of new Widener Engineering graduatesreveals an average starting salary of $74,000, with = $9,000 & n = 25,compute an interval estimate for their salary at a .04 level of significance?

Group of answer choices

a. 74000 +/- (2.06 x 9000)

b. 74000 +/- 9000

c. 74000 + 3708

d. 74000 +/- 3708

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