The standard pH of a drinking water of MRWD is pH 7.0, the pH obtained from several water station are as follows: Station 1              7.8          Station 2              6.5          Station 3              5.8          Station 4              8.9 Station 5              6.8          Station 6              5.8          Station 7              9.0          Station 8              6.9 Test the hypothesis that the drinking water of the MRWD is safe for drinking.

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The standard pH of a drinking water of MRWD is pH 7.0, the pH obtained from several water station are as follows:

Station 1              7.8          Station 2              6.5          Station 3              5.8          Station 4              8.9

Station 5              6.8          Station 6              5.8          Station 7              9.0          Station 8              6.9

Test the hypothesis that the drinking water of the MRWD is safe for drinking.

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