An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.3 minutes. A random sample of 35 dive durations has a mean of 12.5 minutes and a standard deviation of 2.3...

An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.3 minutes. A random sample of 35 dive durations has a mean of 12.5 minutes and a standard deviation of 2.3 minutes. At α=0.01 is there enough evidence to reject the​ oceanographer's claim? Complete parts​ (a) through​ (d) .  Assume the population is normally distributed.

(a)Identify the claim and state H0 and Ha.

(b) The claim is the ______ hypothesis