May someone solve and give explanation
1 answer:
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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:
438,012 ways.
Step-by-step explanation:
We have been given that each coupon code will have three letters followed by two digits. The letters M, N, and O and the digits 1, 3, 5, and 7 will not be used. So, there are 23 letters and 6 digits that will be used.
Since the letters and digits can be repeated, so we will use fundamental principal of counting.
For first place, we can use 23 letters, for 2nd and 3rd place we can use 23 letters.
We can use 6 digits for 1st digit place and 6 digit for 2nd digit place as repetition is allowed.
So we can choose coupon code is following ways:
Therefore, we can choose coupon codes in 438,012 ways.