Question: Foran = 0.05-levellikelihood-ratiotestof H0: = 0 using thelikelihoodfunctionvalues () and 0 = (0), explainwhythecorresponding95%confidenceintervalfor is thesetof 0 for which ()~(0) exp(3.84~2)
Foran α = 0.05-levellikelihood-ratiotestof H0: θ = θ0 using thelikelihoodfunctionvalues
ℓ(ˆθ) and ℓ0 = ℓ(θ0), explainwhythecorresponding95%confidenceintervalfor θ is thesetof
θ0 for which ℓ(ˆθ)~ℓ(θ0) ≤ exp(3.84~2) = 6.8, where3.84isthe0.95quantileforachi-squared distribution with df = 1. Illustratebyfindingthisratiofortheendpointsofthelikelihood-based confidence intervalshownfortheclimatechangeexamplein Section 5.7.2.
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