a:630⋅0.384=241.92≈242b:LB=p^−np^(1−p^)z21+γ=0.384−6300.384(1−0.384)⋅2.5758=0.334089UB=p^+np^(1−p^)z21+γ=0.384+6300.384(1−0.384)⋅2.5758=0.433911c:LB=p^−np^(1−p^)z21+γ=0.384−6300.384(1−0.384)⋅1.6449=0.352127UB=p^+np^(1−p^)z21+γ=0.384+6300.384(1−0.384)⋅1.6449=0.415873d:The99%intervaliswiderbecausethewiderintervalthehigherprobability.
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