Question 2 please A Kami Schoolo.►Prob+and+Stat+Proportion+Testing-Homework.pdf1005oporuon TesmgName:Directions: Show all 5 steps to hypothesls 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.z= 0.175-0.23/ squareroot 0.23(1-0.23)/40n=40= -0.8266p=.23P= 0.2042x=7fail to reject Ho there is insufficient evidence to support that at least 23% own a7/40= 0.175skateboard2. 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.DELL6

Name: Question 2 please A Kami Schoolo.►Prob+and+Stat+Proportion+Testing-Hom
Uploaded: 2024-03-20T07:07:37.000Z
Channel: Bartleby
Description: Question 2 please A Kami Schoolo.►Prob+and+Stat+Proportion+Testing-Homework.pdf1005oporuon TesmgName:Directions: Show all 5 steps to hypothesls testing in the following questions.1. A toy manufacturer claims that at least 23% of the fourteen-year-old

Answered: Image /qna-images/answer/08e8ed5c-8bf8-467b-a55b-47c69bb92c51.jpg

Math

Statistics

skateboard 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?