Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value ta/2, (b) find the critical value Za/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n = 228, x= 28.4 hg, s = 7.8 hg. The confidence level is 90%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. ta/2= (Round to two decimal places as needed.) OB. Za/2 (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies.
Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value ta/2, (b) find the critical value Za/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n = 228, x= 28.4 hg, s = 7.8 hg. The confidence level is 90%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. ta/2= (Round to two decimal places as needed.) OB. Za/2 (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical
value tx/2, (b) find the critical value Za/2, or (c) state that neither the normal distribution nor the t distribution applies.
Here are summary statistics for randomly selected weights of newborn girls: n = 228, x = 28.4 hg, s = 7.8 hg. The
confidence level is 90%.
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. ta/2=
(Round to two decimal places as needed.)
·.·.·
OB. Zα/2=
(Round to two decimal places as needed.).
OC. Neither the normal distribution nor the t distribution applies.
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