Statistics Report Practice, 통계 리포트 연습

A Study of 81 Bank customers revealed that the true average waiting time is between 9.3 min and 10.6 min. This study was done using a 95% gurantee of the results. This sample is valid 19 times out of 20.

 

20번 중의 19번의 유효한 결과값

19 times out of 20.

10번 중의 9번

9 times out of 10.

 

Although we do not know the exact average weight, we can conclude with 95% confidence that the true average weight is between 248g and 252g based on a random sample of 100 bags. This means we have a 5% chance of being wrong.

 

conclue with

conclude(자동사, 타동사 둘 다 사용 가능)

*e.g. conclude a meeting 

 

영어권에서는 ex. 쓰지 않는다. e.g.로 익히고 외우자.

i.g. 즉, 다시 말하자면 정보의 강화 용도로 사용한다.

 

Although we do not know the exact dollar amount, we can conclude with 95% confidence that the true average price is between $52 and $55.8 based on a random sample of 35 patrons. This means we have a 5% chance of being wrong.

 

*patrons: 고객

*significance level: 유의수준