Which of the following Python methods is used to perform a paired t-test for the difference in two population means? Select one. Question 5 options: paired_ttest from scipy module ttest_ind from scipy module proportions_ztest from statsmodels module ttest_rel from scipy module
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Which of the following Python methods is used to perform a paired t-test for the difference in two population means? Select one.
Question 5 options:
paired_ttest from scipy module
ttest_ind from scipy module
proportions_ztest from statsmodels module
ttest_rel from scipy module
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- The hypothesis test result only tells us whether there is a significant difference between 2 populations or not. Calculate the exact standardized effect size using the provided information.What is more appropriate to use for your data set: the one-tailed t-Test or the two-tailed t-Test. Why? Would your APA write-up differ depending on which you used?A small pilot study is run to compare a new drug for chronic pain to one that is currently available. Participants are randomly assigned to receive either the new drug or the currently available drug and to report improvement in pain on a 5-point ordinal scare: 1= pain is much worse,2=pain is slightly worse,3=no change,4=pain improved slightly,5= pain much improved.Is there a significance difference in self reported improvement in pain? Use the Mann-Whitney U test with a 5% level of significance. New Drug: 4 5 3 3 4 2 Standard Drug: 2 3 4 1 2 3