Provided that $n p _ { i } \geq 5$ for every i (i =1, 2, 3, 4, 5), the $\chi ^ { 2 }$ goodness-of-fit test statistic when category probabilities are completely specified has approximately a chi-squared distribution with __________ degrees of freedom.

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The Answer of Provided that $n p _ { i } \geq 5$ for every i (i =1, 2, 3, 4, 5), the $\chi ^ { 2 }$ goodness-of-fit test statistic when category probabilities are completely specified has approximately a chi-squared distribution with __________ degrees of freedom.

Provided That npi≥5n p _ { i } \geq 5npi​≥5 For Every I (I =1, 2, 3, 4, 5), The For Every

Provided That $n p _ { i } \geq 5$ For Every I (I =1, 2, 3, 4, 5), The For Every