Consider the hypothesis test Ho: o² = 02 against H₁ :0² < 2. Suppose that the sample sizes are n₁ = 7 and n₂ = 13 and that s² = 23.0 and s2 = 28.9. Use α = 0.05. (a) Test the hypothesis. Но ✓ rejected. (b) Find a 95% confidence interval on 02/02. Round your answer to two decimal places (e.g. 98.76).

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
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Consider the hypothesis test Ho: 0² o against H₁:0² < 62. Suppose that the sample sizes are n₁ = 7 and n₂ = 13 and that
s² = 23.0 and $2 = 28.9. Use a = 0.05.
(a) Test the hypothesis.
Ho
rejected.
(b) Find a 95% confidence interval on o2/02. Round your answer to two decimal places (e.g. 98.76).
1999/-9
-
i
Transcribed Image Text:Consider the hypothesis test Ho: 0² o against H₁:0² < 62. Suppose that the sample sizes are n₁ = 7 and n₂ = 13 and that s² = 23.0 and $2 = 28.9. Use a = 0.05. (a) Test the hypothesis. Ho rejected. (b) Find a 95% confidence interval on o2/02. Round your answer to two decimal places (e.g. 98.76). 1999/-9 - i
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