構成常態曲線的兩個數值分別為?
(平均值、變異數、標準差、最大值、最小值、中位數、眾數)
生物統計
Quiz
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Mathematics
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University
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Medium
shu-mei Tsai
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7 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
構成常態曲線的兩個數值分別為?
(平均值、變異數、標準差、最大值、最小值、中位數、眾數)
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
常態分佈有四大特徵,除了平均數=眾數=中位數外,還有哪三個特徵?
(單峰、多峰、雙峰、對稱、鐘形、鈴型、分散)
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3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Z 分數的公式如下:
Z=(X-μ)/σ
經過智力測驗後(μ=100,標準差σ=15),科披的IQ 分數是160分(X),請將科披的IQ分數轉換成Z分數為何﹖
1
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
進行研究時,一定會存在不可控制的誤差,機率小於某個臨界值就會被當成不可能,做統計檢定前事先設定α值,常採用的α值為何?
0.1
0.01
0.05
0.5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
檢力(power)是指當對立假說(H1)為真,而結果接受H1之機率,power= 1-β,
在實際應用上,檢力一般設定多少以上?
0.8
0.6
0.7
0.9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
探討某國小五年甲班學生的體重是否高於全校五年級學生的體重,
請問如何寫出假設檢定H0及H1?
H1:μ1<μ;
Ho:μ1 ≥ μ
H1:μ1>μ;
Ho:μ1 ≤ μ。
H1:μ1≠μ;
Ho:μ1=μ。
無法設定
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
機率(probability, p =p值)是指某一事件發生或成功與全部事件間之比例關係。p值是計算在標準常態曲線下Z 分數0 至Z 分數A 之間的什麼?
體積
函數
數值
面積
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