Question: Small Sample Mean Problem. The maker of potato chips uses an automated packaging machine to pack its 20-ounce bag of chips. At the end of

Small Sample Mean Problem. The maker of potato chips uses an automated packaging machine to pack its 20-ounce bag of chips. At the end of every shift 18 bags are selected at random and tested to see if the equipment needs to be readjusted. After one shift, a sample of 18 bags yielded the following data.mean = 20.45s = .80n = 18.

If we were to conduct a test to see if the sample estimate is different from the company's expected weight of 20 oz. at an alpha level = .05, what is (are) the critical t-value(s) for this test?

a. 2.110

b. -2.110 and 2.131

c. -1.96 and 1.96

d. -2.110 and 2.110

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