### 7.1: Identify the Critical tAn independent random sample is selected from an approximately normal population with unknown standard deviation. Find the degrees of freedom and the critical value t* when \(n = 28\) and the confidence level is 98% (please round to at least four places).#### Degrees of Freedom:[Text box for input]#### Critical Value:[Text box for input] ---Explanation:- **Degrees of Freedom (df):** This is a measure of the amount of information available for estimating the population parameter. It is calculated using \( df = n - 1 \).- **Critical Value (\( t^* \))**: This is the value that the test statistic must exceed in order to reject the null hypothesis at the specified confidence level. For a confidence level of 98%, this value can be found using statistical tables or software.

Given,sample size(n)=28α=1-0.98=0.02α=0.02

Answered: 7.1: Identify the critical t. An…

MATLAB: An Introduction with Applications

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Author:Amos Gilat

Publisher:Amos Gilat

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