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categoryرياضيات
schoolبكالوريوس
event_available2026-07-16
السؤال
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Chapter 10 Section 1 Additional Problem 1
Consider the hypothesis test Ho₁ =μ2 against H₁₁ <H2 with known variances σ1 10 and σ2 = 6. Suppose that
sample sizes n₁ = 11 and n₂ = 14 and that x₁ = 14.3 and X2 = 19.6. Use α = 0.05.
a
(a) Test the hypothesis and find the P-value.
(b) What is the power of the test in part (a) if μ is 4 units less than μ₂?
(c) Assuming equal sample sizes, what sample size should be used to obtain ẞ = 0.05 if μ1 is 4 units less than μ2? Assume that
α = 0.05.
(a) The null hypothesis
rejected. The P-value is
Round your answer to four decimal places
(e.g. 98.7654).
(b) The power is
(c) n₁ = n₂ =
Round your answer to two decimal places (e.g. 98.76).
Round your answer up to the nearest integer.
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