An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.4 minutes. A random sample of 35 dive durations has a mean of 12.3 minutes and a standard deviation of 2.1 minutes. At =0.05 is there enough evidence to reject the oceanographer's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (a) Identify the claim and state H0 and Ha. \begin{tabular}{l|l} H0: & \\ Ha: & \end{tabular} (Type integers or decimals. Do not round.) The claim is the hypothesis