In-Class Assignment 10 (statcrunch example) PDF

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In-Class Assignment 10 (statcrunch example)...

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In-class Assignment 10 Example Example 1) ***Since you are given population standard deviation, you will be using Z-distribution.***

Calculation:

In-class Assignment 10 Example

Z stat = 2.2 (from statcrunch) P-value = 0.014 (from statcrunch) Critical Value = 1.645 (using excel formula NORM.S.INV)

In-class Assignment 10 Example Example 2) ***Since you are given sample standard deviation, you will be using T-distribution.***

Calculation:

In-class Assignment 10 Example

T stat = 1.14 (from statcrunch) P-value = 0.261 (from statcrunch) Critical Values = -2.03, 2.03 (using excel formula =T.INV(0.025,37))  because two-tail testing

In-class Assignment 10 Example Example 3) ***Since you are given sample data, you will be using T-distribution.*** ***Since you are given n1 = n2 and they are related, you will be using paired sample.***

Pair 1 2 3 4 5 6 7

Sample_1 Sample_2 6 4 5 3 10 5 5 4 6 4 7 4 9 5

In-class Assignment 10 Example Calculation:

In-class Assignment 10 Example

T stat = 5.20 (from statcrunch) P-value = 0.002 (from statcrunch) Critical Values = -2.45, 2.45 (using excel formula =T.INV(0.025,6))  because two-tail testing

In-class Assignment 10 Example Example 4) ***Since you are given proportion, you will be using Z-distribution.***

Calculation:

In-class Assignment 10 Example

Z stat = -1.14 (from statcrunch) P-value = 0.127 (from statcrunch) Critical Value = -1.28 (using excel formula =NORM.S.INV(0.1))...