[問題] 兩母體平均數之差的推論
課本上有一題:
Month 1 2 3 4 5 6 7 8 9 10 11 12
Before program 68 44 30 58 35 33 52 69 23 69 48 30
After program 59 42 20 62 25 30 56 62 25 75 40 26
但t的正確解答是1.82
我一直算不出來
煩請會的大家幫忙一下
麻煩了~~
謝謝大家!!!!
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