Which of the following represents the appropriate null hypothesis (H0), given this research question of interest? Group of answer choices

a. H0: µ1 - µ2 = 0
b. H0: µ1 - µ2 = 5
c. H0: µ1 - µ2 = 0.0347
d. H0: µ1 - µ2 ≠ 0
e. H0: µ1 - µ2 = 0.0326

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

answer: 10 meter

step-by-step explanation:

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