Q1[2 point] Consider the following hypothesis: Give: H?: ? ? 28 H?: ? > 28 A sample with x?=28.9, ?=2, n=36 Assuming ?=0.05 Solution: [1 point for writing rules/formula] Calculate z_x?= Find z?= Compare z_x? and z? Your conclusion:
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Step 1
Calculate the test statistic (Zx): Zx = (x - μ) / (Ļ / ān) Zx = (28.9 - 28) / (2 / ā36) Zx = 0.9 / (2 / 6) Zx = 0.9 / (1/3) Zx = 2.7 Show moreā¦
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Q2[1.5 point] Consider the following hypothesis: Give: H0: μ ā„ 28 H1: μ < 28 A sample with xĢ = 27.5, Ļ = 5, n = 36 Assuming α = 0.05 Solution: Calculate zxĢ = Compare zα = Compare zxĢ and zα Your conclusion:
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Q3[2 point] Consider the following hypothesis: Give: Hā: μ = 28 Hā: μ ā 28 A sample with xĢ = 27.5, Ļ = 5, n = 36 Assuming α = 0.05 Solution: Calculate z_xĢ = Compare z_α = Compare z_xĢ and z_α Your conclusion:
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