10. Rate test

The rate test is used to analyze whether any rate in the experiment is satisfactory.

Example:

3
2
5
4
2
9
4
2
7
3
3
3
3
5
8
4
4
3
4
8
8
7
5
4
5
3
2
5
5
2
6
2
2
5
6
4
6
5
4
3
6
5
2
6
3
2
3
2
1
6
3
2
3
5
2
4
6
3
2
6
2
0
3
6
4
6
5
6
3
4
3
4
1
7
4
5
3
3
3
2
5
5
6
7
7
2
4
3
5
6
4
5
3
5
0
5
5
5
7
9

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We will upload the data to the system.

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Configuring according to the figure below for test the rate.

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Then click Calculate to get the results. You can also generate the analyses and download them in Word format.

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The results are as follows:

Results

	V1
Z statistic	0.95
P-value	0.1710561
Average sampling rate	4.19
Sample size	100
Alternative hypothesis greater than	4
Confidence level	95%
Lower limit	3.853307
Upper limit	Inf

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As the p-value is equal to 0.1711 $>$ 0.05 we do not reject the null hypothesis that the average defect rate per piece is 4. Therefore, we don’t have enough evidence to reject the lot.