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The probability of concluding that assignable variation exists when only random variation is present is:_____

I. the probability of a type I error.
II. known as the alpha risk
III. highly unlikely.
IV. the sum of probabilities in the two tails of the normal distribution

a. I and II
b. I and IV
c. II and III
d. I, II, and IV
e. I, III, and IV

Respuesta :

isaacoranseola

Answer:

d. I, II, and IV

Step-by-step explanation:

The probability of a type I error: A type I error comes to play when one turns down the null hypothesis when it is true.

known as the alpha risk: this is also referred to as type I error, it is the risk in a statistical test which shows that a null hypothesis will be rejected even though it is actually true.

The sum of probabilities in the two tails of the normal distribution.

Hence, I, II, and IV are the options

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