Question: Homework: Online... Homework: Online... Question 5, *7.3.6 HW Score: 42.86%, 6 of 14 points O Points: O of 1 Save To construct a confidence interval

Homework: Online...

Homework: Online... Question 5, *7.3.6 HW Score: 42.86%, 6 of 14 points O Points: O of 1 Save To construct a confidence interval using the given confidence level, do whichever of the following is appropriate. (a) Find the critical value z (1/2, (b) find the critical value (1/2, or (c) state that neither the normal nor the t distribution applies. 90%; n = 400; o is unknown; population appears to be skewed Click here to view a table of critical t-values. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. Choose the correct answer below. O o A. =2.575 = 2.588 C. za/2=1.645 = 1.649 Neither the normal nor the t distribution applies.

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