If the probability of committing a Type I error is set at 0.10, then the probability of committing a Type II error will be 0.90, since the sum of probabilities must be 1.0.

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The probability of committing a Type II error is not necessarily 0.90 just because the probability of committing a Type I error is set at 0.10. The probability of committing a Type II error depends on factors such as the sample size, effect size, and the level of significance of the test.

If the Probability of Committing a Type I Error Is