A sample of size n = 19 has variance s2 = 1.96. At α2 = .05...

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A sample of size n = 19 has variance s2 = 1.96. At α2 = .05...

A sample of size n = 19 has variance s² = 1.96. At α² = .05 in a right-tailed test, does this sample contradict the hypothesis that σ² = 1.21?

(a) Choose the correct null and alternative hypotheses.

H₀: σ² ≥ 1.21 vs. H₁: σ² < 1.21
H₀: σ² = 1.21 vs. H₁: σ² ≠ 1.21
H₀: σ² ≤ 1.21 vs. H₁: σ² > 1.21.

(b) Calculate the decision rule. (Round your answer to 2 decimal places.)

χ² >

(c) Calculate the test statistic. (Round your answer to 2 decimal places.)

χ²

(d) Choose the correct conclusion.

Fail to reject H₀.
Reject H₀.

math Statistics-And-Probability

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Answer 1

Answer #1

PAGE NO DATE n=19 . s=1.gr , 2= 0.05 L we want to test, H: 822 1.21 ws H, 8² > 1.21 - decision Rule. Reject Ho if I calculate

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Answer 2

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A sample of size n = 19 has variance s2 = 1.96. At α2 = .05...

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A sample of size n = 19 has variance s2 = 1.96. At α2 = .05...

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Add Answer to: A sample of size n = 19 has variance s2 = 1.96. At α2 = .05...

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