Minitab的使用方法
各位同學 因為我上課時都不知道教授怎麼使用Minitab的
上星期助教教學時又遲到還是沒聽到
所以在我摸索出來怎麼用後希望能對大家有所助益
也可以節省不必要浪費的時間
如果還是不懂就自己再把Help的功能叫出來慢慢研究
因為這些都是從那邊Copy過來的
祝大家考試順利!!!
15-2 Sign Test
Stat > Nonparametrics > 1-Sample Sign
1.Choose Stat > Nonparametrics > 1-Sample Sign.
2.In Variables, enter the column(s) containing the data.
3.Choose one of the following:
*to calculate a sign confidence interval for the median, choose Confidence
interval
*to perform a sign test, choose Test median
4.If you like, use one or more of the available dialog box options,
then click OK.
Dialog box items~
Variables: Select the column(s) containing the variable(s) you want to test.
Confidence interval: Choose to calculate a sign confidence interval.
Level: Specify the level of confidence desired between 0 and 100.
Test median: Choose to perform a sign-test, then specify the null hypothesis
test value.
Alternative: Click the arrow to choose the kind of test performed by
selecting less than (lower-tailed), not equal (two-tailed), or
greater than (upper-tailed) from the drop-down box.
15-2 Sign Test for Paired Samples
1.Choose Stat > Nonparametrics > Pairwise Differences.
2.In First variable, enter a column. The column you enter in Second
variable will be subtracted from this column.
3.In Second variable, enter a column. This column will be subtracted from
the column you entered in First variable.
4.In Store differences in, enter a column name or number to store the
differences. For n data values, Minitab stores n (n + 1) / 2 pairwise
differences.
5.If you like, use one or more of the dialog box options, then click OK.
PS:跑出來的數據很奇怪, 所以強烈建議不要使用Minitab去解這種數據
最好還是用Appendix Table7去判斷
15-3 Wilcoxon Signed-Rank Test
1.Choose Stat > Nonparametrics > 1-Sample Wilcoxon.
2.In Variables, enter the column(s) containing the variable(s).
3.Choose one of the following:
*to calculate a Wilcoxon confidence interval for the median, choose
Confidence interval
*to perform a Wilcoxon signed rank test, choose Test median
4.If you like, use one or more of the available dialog box options,
then click OK
15-4 Wilcoxon Ran-Sum Test(Mann-Whitney Test)
1.Choose Stat > Nonparametrics > Mann-Whitney.
2.In First Sample, enter the column containing the sample data from one
population.
3.In Second Sample, enter the column containing the other sample data.
4.If you like, use one or more of the available dialog box options,
then click OK.
First Sample: Select the column containing the sample data from one population.
Second Sample: Select the column containing the sample data from the
other population.
Confidence level: Specify the level of confidence desired between 0 and 100;
the attained level will be as close as possible.
Alternative: Click the arrow to choose the kind of test performed by
selecting less than (lower-tailed), not equal (two-tailed),
or greater than (upper-tailed) from the drop-down box.
15-5 Kruskal-Wallis Test
這裡我多用些中文描述 因為我花了二三十分鐘才弄懂
1. 首先決定Factor 也就是不同的level 課文中用i來表示 i = 1,2,3…a
2. 再決定Response也是個別level擁有的值 課文中用j來表示 j = 1,2,3…n
3. 在Minitab中選定兩個Columns 一個當Factor另一個當Response
4. 請按照順序key in Factor 和Response的值
舉例來說我們有三個level 每個level有兩個值
C1 C2
Factor Response
1 11
1 22
2 33
2 44
3 55
3 66
5.Choose Stat> Nonparametrics>Kruskal-Wallis
6.最後在Dialog Box選好Factor 和Response的column 按下ok就大功告成了
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