A-1. For the following statements, If the relationship in a regression model is significant at 99% confidence interval, then this relationship must also be significant at 95% confidence interval. Whenever your decision is to reject the null hypothesis, there is a risk of a Type I error. The sampling distribution of the sample mean is approximately normal whenever the sample size is sufficiently large (n > 30) How many of them are true? А. О В. 1 С. 2 D. 3

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