QUESTION 8 The data table below contains the amounts that a sample of nine custo

Question

QUESTION 8 The data table below contains the amounts that a sample of nine customers spent for lunch (in dollars) at a fast-food restaurant 4.22 5.01 5.82 6.52 7.33 7.42 8.61 8.46 9.73 At the 0.10 level of significance, is there evidence that the mean amount spent for lunch is different from $6.50? Identify the critical value(s). The critical value(s) is(are) (Round to four decimal places as needed. Use a comma to separate answers as needed.) -1.8695, 1.8695 -1.8595, 1.8595 -1.7595, 1.7595 -1.5596, 1.5596 QUESTION 9

Explanation / Answer

Degrees of freedom = n - 1 = 9 - 1 = 8

Also, this is a two tailed test.

Hence,

Critical values = -1.8595, 1.8595

Option B is correct.

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