A researcher conducted a study to determine if CBD oil reduced test anxiety more than a placebo. She found that there was no significant difference between CBD oil and placebo. However, she did not conduct a power analysis before her study but she found that the 50 participants she included gave her power = .50. Which of the following conclusions is (are) most appropriate? She should have rejected the null hypothesis She could have made a Type I error She could have made a Type II error "She could have correctly failed to reject the null hypothesis Both A & B Both C & DA researcher conducted a study to determine if CBD oil reduced test anxiety more than a placebo. She found that there was no significant difference between CBD oil and placebo. However, she did not conduct a power analysis before her study but she found that the 50 participants she included gave her power = .50. Which of the following conclusions is (are) most appropriate? She should have rejected the null hypothesis She could have made a Type I error She could have made a Type II error "She could have correctly failed to reject the null hypothesis Both A & B Both C & D