85% of all restaurants fail after one year. Is that number different for Chinese restaurants? Out of a random selection of 200 new Chinese restaurants, 175 had failed after one year. Use a 0.05 significance level to test your hypothesis. What is the probability of Z obt? (Round to the nearest hundredth)
85% of all restaurants fail after one year. Is that number different for Chinese restaurants? Out of a random selection of 200 new Chinese restaurants, 175 had failed after one year. Use a 0.05 significance level to test your hypothesis. What is the probability of Z obt? (Round to the nearest hundredth)
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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Question
85% of all restaurants fail after one year. Is that number different for Chinese restaurants? Out of a random selection of 200 new Chinese restaurants, 175 had failed after one year. Use a 0.05 significance level to test your hypothesis.
What is the probability of Z obt? (Round to the nearest hundredth)

**Normal Curve Probability Calculator**
[Link to Math Portal](https://www.mathportal.org/calculators/statistics-calculator/normal-distribution-calculator.php)
85% of all restaurants fail after one year. Is that number different for Chinese restaurants? Out of a random selection of 200 new Chinese restaurants, 175 had failed after one year. Use a 0.05 significance level to test your hypothesis.
What is the probability of \( Z_{obt} \) (round to the nearest hundredth)?
[Text box for answer]
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This section presents a problem to evaluate whether the failure rate for Chinese restaurants differs from the general failure rate of 85% for all restaurants. It includes links for tools required to calculate z-scores and probabilities for hypothesis testing.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F50676203-4d66-4410-b063-dca0ca2a90db%2Fa8b4e021-64c9-4a5f-8a63-96743f907318%2Fxvodelt_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Question 6**
For this problem, you will need: pencil, paper, calculator, z-crit significance levels, and a NC probability calculator.
**Z-Crits for Common Significance Levels**
[Link to Google Document](https://docs.google.com/document/d/1kcDDA6ozfZcoeL0ghihjyJ4C09YKwSuQUGOTQLLpLdI/edit?usp=sharing)
**Normal Curve Probability Calculator**
[Link to Math Portal](https://www.mathportal.org/calculators/statistics-calculator/normal-distribution-calculator.php)
85% of all restaurants fail after one year. Is that number different for Chinese restaurants? Out of a random selection of 200 new Chinese restaurants, 175 had failed after one year. Use a 0.05 significance level to test your hypothesis.
What is the probability of \( Z_{obt} \) (round to the nearest hundredth)?
[Text box for answer]
---
This section presents a problem to evaluate whether the failure rate for Chinese restaurants differs from the general failure rate of 85% for all restaurants. It includes links for tools required to calculate z-scores and probabilities for hypothesis testing.
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