Answer : There are no more than 10% of homes in the city are not up to the current electric codes but actually we do not have evidence to accept it.
Explanation:
The Type I error occurs when the null hypothesis is true but we reject it.
Given null hypothesis :
: an electrician claims that no more than 10% of homes in the city are not up to the current electric codes.
The Type I error for the given situation is that there are no more than 10% of homes in the city are not up to the current electric codes but actually we do not have evidence to accept it.
Answer:

Step-by-step explanation:

I think the answer should be
D , because 28-9=21 and 21=x