The net weights of a sample of bottles filled by a machine manufactured by Edne, and the net weights of a sample filled by a similar machine manufactured by Orno, Inc. are (in grams): Edne: 5, 8, 7, 6, 9, and 7 Orno: 8, 10, 7, 11, 9, 12, 14, and 9. Testing the claim, at the 0.05 level of significance, that the mean weight of the bottles filled by the Orno machine is different from the mean weight of the bottles filled by the Edne machine, what are the critical values?

		-1.65 and + 1.65
		-2.837 and + 2.837
		-2.179 and +2.179
		-3.674 and +3.674
		None of the above