Question 1. If u can help with others that would be great too. - Kahi SChoolo...Proportion TestingName:Directions: Show all 5 steps to hypothesis testing in the following questions.1. A toy manufacturer claims that at least 23% of the fourteen-year-old residents of a certain city own askateboard. A sample of 40 fourteen-year-olds shows that 7 own a skateboard. Test the claim at a = 0.05.2. A study on crime suggested that at least 40% of all arsonists were less than 21 years old. Checking local crimestatistics, a researcher found that 30 out of 80 arson suspects were fewer than 21. At a = 0.10, should the crimestudy's statement be believed?3. An engineering school's dean claims that 21% of the school's graduates are women. In a graduating class of 143students, there were 38 females. Does this result suggest that the dean's claim is believable? Use a = 0.05.

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A toy manufacturer claims that at least 23% of the fourteen-year-old residents of a certaln city own a skateboard. A sample of 40 fourteen-year-olds shows that 7 own a skateboard. Test the claim at a = 0.05. %3D

A toy manufacturer claims that at least 23% of the fourteen-year-old residents of a certaln city own a skateboard. A sample of 40 fourteen-year-olds shows that 7 own a skateboard. Test the claim at a = 0.05. %3D

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 1. If u can help with others that would be great too.

- Kahi SChoolo...
Proportion Testing
Name:
Directions: Show all 5 steps to hypothesis testing in the following questions.
1. A toy manufacturer claims that at least 23% of the fourteen-year-old residents of a certain city own a
skateboard. A sample of 40 fourteen-year-olds shows that 7 own a skateboard. Test the claim at a = 0.05.
2. A study on crime suggested that at least 40% of all arsonists were less than 21 years old. Checking local crime
statistics, a researcher found that 30 out of 80 arson suspects were fewer than 21. At a = 0.10, should the crime
study's statement be believed?
3. An engineering school's dean claims that 21% of the school's graduates are women. In a graduating class of 143
students, there were 38 females. Does this result suggest that the dean's claim is believable? Use a = 0.05.

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