You measure the lifetime of a random sample of 64 tires of a certain brand. In a
ID: 3153467 • Letter: Y
Question
You measure the lifetime of a random sample of 64 tires of a certain brand. In a follow-up study, more tires were available for testing, so you were able to measure the lifetimes of a random sample of 100 tires rather than 64. Which statement is TRUE?
The margin of error for our 99% confidence interval would increase.
The margin of error for our 99% confidence interval would decrease.
would decrease.
The margin of error for our 99% confidence interval would stay the same because the level of confidence has not changed.
Explanation / Answer
g, so you were able to measure the lifetimes of a random sample of 100 tires rather than 64. Which statement is TRUE?
when you have a random sample more bigger it is known that the margin of error would be decrease , because you are using a random sample that is more bigger so that means that your error is going to decrease by the factor that our sample is close to the population