Question

Hi, can you help me answer this question please, thank you!

Answer 1

You want to test the claim that the average number of miles driven on this tire before needing to be replaced is greater than 50500 miles.

Remember that the null hypothesis is usually associated with just ‘equals to’ sign as can either be accepted or rejected.

Then the correct null hypothesis is:

`H_0\colon\mu=50500miles`

And the alternative hypothesis is the hypothesis that the researcher tries to prove, then the correct alternative hypothesis is:

`H_a\colon\mu>50500\text{ miles}`