**Constructing a Confidence Interval for Newborn Weights**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:- Sample size (\( n \)): 212- Sample mean (\( \bar{x} \)): 31.6 hg- Sample standard deviation (\( s \)): 6.3 hg- The confidence level is 95%.-----## Instructions: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.

Answered: Assume that we want to construct a…

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,/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 = 190, x = 33.9 hg, s = 6.8 hg. The confidence level is 90%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. ta/2= (Round to two decimal places as needed.) O B. Za/2 = (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies.

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