Test for single population mean

Reference no: EM1320624

Use a 0.05 significance level to test the claim that the mean life span of cell phones is equal to 5 years. The sample data are summarized by the statistics n = 27, x = 4.6 years, s- 1.9 years. See the display below.

		Test	Value = 5
					95% Confidence Interval of the Difference
	t	df	Sig. 2(Tailed)	Mean Difference	lower	upper
Age	-1.094	26	0.284	-0.4	************	*****

Reference no: EM1320624

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