Question 10 [1 point) Which of the following statements about confidence intervals from a regression model are true? C] We expect that in 95% of repeated samples, the 95% confidence interval will contain the true effect. C] Confidence intervals are not of much help if our model omits some variable zthat is correlated with both our independent and dependent variables. 0 Confidence intervals are often quite wide because we can be certain that they contain the true effect. C] We are 95% sure that the true effect is included within the 95% confidence interval