Step 1 :The null hypothesis is a statement of no effect or status quo, in this case, it would be that the mean tornado length is equal to 23 miles.
Step 2 :The alternative hypothesis is what we are testing against the null hypothesis, in this case, it would be that the mean tornado length is greater than 23 miles.
Step 3 :Without any data or further information, we cannot calculate the test statistic and P-value.
Step 4 :Without any data or further information, we cannot make a conclusion.
Step 5 :Null Hypothesis: \(\boxed{\mu = 23}\) miles
Step 6 :Alternative Hypothesis: \(\boxed{\mu > 23}\) miles