早(はや)とちりjumping to a wrong conclusion

早(はや)とちりして回答(かいとう)を間違(まちが)えてしまった。

I jumped to a wrong conclusion and ended up giving an incorrect answer. {jumping to a wrong conclusion}

あ…早(はや)とちりして資料(しりょう)をもう捨(す)てちゃった…。

Ah... I jumped to a wrong conclusion and already threw away the materials... {jumping to a wrong conclusion}

不(ふ)採用(さいよう)を採用(さいよう)と早(はや)とちりしてぬか喜(よろこ)びをしました。

I made a fool of myself by jumping to the wrong conclusion, mistaking rejection for acceptance. {jumping to a wrong conclusion}

会議(かいぎ)が中止(ちゅうし)になったというのは早(はや)とちりで、延期(えんき)でした。

The assumption that the meeting was cancelled was jumping to a wrong conclusion; it was actually postponed. {jumping to a wrong conclusion}

あんなに慎重(しんちょう)な社長(しゃちょう)が早(はや)とちりなんてするわけがありません。

There's no way such a cautious president would jump to a wrong conclusion. {jumping to a wrong conclusion}