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: \( n = 175 \), \( \bar{x} = 33.2 \) hg, \( s = 6.9 \) hg. The confidence level is 95%.---Select the correct choice below and, if necessary, fill in the answer box to complete your choice.- \( \bigcirc \) A. \( t_{\alpha/2} = \) [Answer Box] (Round to two decimal places as needed.)- \( \bigcirc \) B. \( z_{\alpha/2} = \) [Answer Box] (Round to two decimal places as needed.)- \( \bigcirc \) C. Neither the normal distribution nor the t distribution applies.

given data,n=175x¯=33.2s=6.9CI=0.95α=1-0.95=0.05df=n-1=175-1=174normal distribution

Answered: (c) state that neither the normal…

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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A statistics class is estimating the mean height of all female students at their college. They collect a random sample of 42 female students and measure their heights. The mean of the sample is 65.3 inches and the sample standard deviation is 5.4 inches. Find the 90% confidence interval for the mean height of all female students in their school? Assume that the distribution of individual female heights at this school is approximately normal. 1. The t value is 1.3025 2. The standard error has a value of -- 3. The margin of error has a value of 4. Find the 90% confidence interval for the mean height of all female students in their school
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