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Question 1 (3 points) For a Student's t-distribution with mean 0, standard deviation 1, and degrees of freedom 49, which of the following Python lines
Question 1 (3 points) For a Student's t-distribution with mean 0, standard deviation 1, and degrees of freedom 49, which of the following Python lines outputs the critical value a if Plt a) =0.818? Note: is a constant. Select one. O import scipy.stats as st print(st.norm.ppf(0.818, 0, 1)) import scipy.stats as st print(st.norm.isf(0.818, 0, 1)) O import scipy.stats as st print(st.norm.pdf(0.818, 0, 1)) O import scipy.stats as st print(st.norm.cdf(0.818, 0, 1)) Question 3 (3 points) The shaded region under a Normal distribution with mean 0 and standard deviation 1 (Standard Normal distribution) is shown. Which of the following is the best choice that corresponds to the shaded region? Select one. mean Probability of x s -1 Probability of x 2-1 Probability of x s +1 Probability of x 2 +1 Question 4 (3 points) The shaded region under a Normal distribution with mean and standard deviation 1 (Standard Normal distribution) is shown. Which of the following is the best choice that corresponds to the shaded region? Select one. mean Probability of z s +1.5 Probability of 2 2 -1.5 Probability of z 2 +1.5 Probability of z s -1.5 Question 5 (3 points) For a Student's t-distribution with mean O, standard deviation 1, and degrees of freedom 30, which of the following Python lines outputs the probability P(1.50
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