A national survey shows that $$\(95 \%\)$$ of year 12 students use social media. Arvin suspects that the percentage of year 12 students at his college who use social media is less than the national percentage. He chooses a random sample of 20 students at his college and notes the number who use social media. He then carries out a test at the $$\(2 \%\)$$ significance level. Find the probability of a Type I error. ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................ ........................................................................................................................................................

Answer:

Knowledge points:

Solution: