Suppose we are interested in learning about the difference in job placement among graduates from NC State's undergraduate programs. We wish to calculate a confidence interval for the difference in proportions pi – p2, where PI = the proportion of alumni (at least two years removed from graduation) from NC State's College of Engineering which are currently working in a job that they are satisfied with p2 = the proportion of alumni (at least two years removed from graduation) from NC State's College of Sciences which are currently working in a job that they are satisfied with Taking all assumptions for granted, if you were to calculate a 95% confidence interval, what would be the critical value from the relevant bell-shaped distribution used in your calculation? Select one: O a. 1.28 O b. 1.96 C. 4.303

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Suppose we are interested in learning about the difference in job placement among graduates from NC State's
undergraduate programs. We wish to calculate a confidence interval for the difference in proportions pi – p2, where
P = the proportion of alumni (at least two years removed from graduation) from NC State's College of Engineering which
%3D
are currently working in a job that they are satisfied with
p2 = the proportion of alumni (at least two years removed from graduation) from NC State's College of Sciences which are
currently working in a job that they are satisfied with
Taking all assumptions for granted, if you were to calculate a 95% confidence interval, what would be the critical value from
the relevant bell-shaped distribution used in your calculation?
Select one:
O a. 1.28
O b. 1.96
С. 4.303
O d. 1.645
Transcribed Image Text:Suppose we are interested in learning about the difference in job placement among graduates from NC State's undergraduate programs. We wish to calculate a confidence interval for the difference in proportions pi – p2, where P = the proportion of alumni (at least two years removed from graduation) from NC State's College of Engineering which %3D are currently working in a job that they are satisfied with p2 = the proportion of alumni (at least two years removed from graduation) from NC State's College of Sciences which are currently working in a job that they are satisfied with Taking all assumptions for granted, if you were to calculate a 95% confidence interval, what would be the critical value from the relevant bell-shaped distribution used in your calculation? Select one: O a. 1.28 O b. 1.96 С. 4.303 O d. 1.645
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