In: Math
To use Excel INV functions, such as XXXX.INV(probability,....) to generate random variates, replace probability by:
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 the mean of the distribution  | 
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 0.05, the level of significance  | 
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 the uniform distribution formula  | 
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 RAND()  | 
Option-D) RAND(). Because RAND() will give a value between 0 and 1 (both inclusive) same as range of the probability.