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20.91 (the critical value for a 91% level of confidence) is digits after the decimal point.) . (Round answer to two decimal places. There must be two

20.91 (the critical value for a 91% level of confidence) is digits after the decimal point.) . (Round answer to two decimal places. There must be two

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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### Critical Value Determination **Problem Statement:** Find \( z_{0.91} \) (the critical value for a 91% level of confidence). Round the answer to two decimal places. There must be two digits after the decimal point. **Solution:** - This question seeks the z-value corresponding to a 91% confidence level. - Typically, this involves finding the point on the Z-distribution where the area under the curve to the right of the z-value equals \((1 - 0.91)/2\) or 0.045. **Instructions:** 1. Use a Z-table or statistical software to find the critical z-value. 2. Ensure to round your answer to precisely two decimal places. **Example:** If consulting a Z-table gives you a raw z-value, ensure to format it correctly as specified (e.g., 1.34). **Note:** This critical z-value is crucial for hypothesis testing and constructing confidence intervals in statistics.
Transcribed Image Text:### Critical Value Determination **Problem Statement:** Find \( z_{0.91} \) (the critical value for a 91% level of confidence). Round the answer to two decimal places. There must be two digits after the decimal point. **Solution:** - This question seeks the z-value corresponding to a 91% confidence level. - Typically, this involves finding the point on the Z-distribution where the area under the curve to the right of the z-value equals \((1 - 0.91)/2\) or 0.045. **Instructions:** 1. Use a Z-table or statistical software to find the critical z-value. 2. Ensure to round your answer to precisely two decimal places. **Example:** If consulting a Z-table gives you a raw z-value, ensure to format it correctly as specified (e.g., 1.34). **Note:** This critical z-value is crucial for hypothesis testing and constructing confidence intervals in statistics.
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