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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 t₁/2. (b) find the critical value Zα/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=210, x=28.2 hg, s= 6.3 hg. The confidence level is 95%. 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.) O 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 t₁/2. (b) find the critical value Zα/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=210, x=28.2 hg, s= 6.3 hg. The confidence level is 95%. 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.) O C. Neither the normal distribution nor the t distribution applies.

MATLAB: An Introduction with Applications
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 \( t_{\alpha/2} \), (b) find the critical value \( z_{\alpha/2} \), or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: \( n = 210 \), \( \bar{x} = 28.2 \) hg, \( s = 6.3 \) hg. The confidence level is 95%. --- Select the correct choice below and, if necessary, fill in the answer box to complete your choice. - A. \( t_{\alpha/2} = \) [ ] (Round to two decimal places as needed.) - B. \( z_{\alpha/2} = \) [ ] (Round to two decimal places as needed.) - C. Neither the normal distribution nor the t distribution applies.
Transcribed Image Text:Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value \( t_{\alpha/2} \), (b) find the critical value \( z_{\alpha/2} \), or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: \( n = 210 \), \( \bar{x} = 28.2 \) hg, \( s = 6.3 \) hg. The confidence level is 95%. --- Select the correct choice below and, if necessary, fill in the answer box to complete your choice. - A. \( t_{\alpha/2} = \) [ ] (Round to two decimal places as needed.) - B. \( z_{\alpha/2} = \) [ ] (Round to two decimal places as needed.) - C. Neither the normal distribution nor the t distribution applies.
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