Stacy purchases a new product that claims it will help her sleep better at night. However, after using it, Stacy discovers that it has no effect on her sleeping habits.
Which of the following statements would best characterize Stacy's decision to buy the product?
a. She made a Type I error.
b. She made a Type II error.
c. She made a statistical significance error.
d. She made the correct decision.
Question 2
Which of the following is NOT a name for the probability of making a Type I error?
a. alpha
b. significance level
c. beta
d. p value
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