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If a sample of 50 people from this region is selected, what is the probability In a study of the life expectancy of 400 people in a certain geographic region, the mean age death was 70 years, and the standard deviation was 5.1 years. that the mean life

If a sample of 50 people from this region is selected, what is the probability In a study of the life expectancy of 400 people in a certain geographic region, the mean age death was 70 years, and the standard deviation was 5.1 years. that the mean life

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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In a study of the life expectancy of 400 people in a certain geographic region, If a sample of 50 people from this region is selected, what is the probability the mean age death was 70 years, and the standard deviation was 5.1 years. that the mean life <pectancy wil! be less than 68 years? 1. Step 1: Identity the parts of the problem. Given: 1-2. 3-4. 5-6. 7-8. Find: 9-10. Step 2: Use the formula to find the z-score. Z = -u In 11-14. Substitute the values in the formula. 15-17. Write the z-score.
Transcribed Image Text:In a study of the life expectancy of 400 people in a certain geographic region, If a sample of 50 people from this region is selected, what is the probability the mean age death was 70 years, and the standard deviation was 5.1 years. that the mean life <pectancy wil! be less than 68 years? 1. Step 1: Identity the parts of the problem. Given: 1-2. 3-4. 5-6. 7-8. Find: 9-10. Step 2: Use the formula to find the z-score. Z = -u In 11-14. Substitute the values in the formula. 15-17. Write the z-score.
Step 3: Use the z-table to look up the z-score you calculated in Step 2. 18-20. Corresponding area Step 4: Draw a graph and plot the z-score and its corresponding area. The Label and shade the part that you're looking for. (21-30): Step 5: Subtract your score from 0.500. 31-33. Step 6: Convert the decimal in Step 5 to a percentage. 34-35. Conclusion (36-40):
Transcribed Image Text:Step 3: Use the z-table to look up the z-score you calculated in Step 2. 18-20. Corresponding area Step 4: Draw a graph and plot the z-score and its corresponding area. The Label and shade the part that you're looking for. (21-30): Step 5: Subtract your score from 0.500. 31-33. Step 6: Convert the decimal in Step 5 to a percentage. 34-35. Conclusion (36-40):
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