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A Null hypothesis is formulated as an alternate hypothesis. Type-I error occurs when A Null hypothesis is

  • A.Accepted when it is true
  • B.Rejected when it is true
  • C.Rejected when it is false
  • D.Accepted when it is false

Answer: B

A Type I error occurs when a null hypothesis is rejected when it is true. The researcher finds an effect that does not exist, and the probability of this is the level of significance, alpha.

Accepting a false null hypothesis is a Type II error, and accepting a true one or rejecting a false one are correct decisions.

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