An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.5 minutes. A random sample of 34 dive durations has a mean of 12.2 minutes and a standard deviation of 2.2 minutes. Is there enough evidence to reject the claim at α = 0.10?

(a) Identify the claim and state H₀ and H_a, 

(b) Use technology to find the P-value, 

(c) Decide whether to reject or fail to reject the null hypothesis, and 

(d) Interpret the decision in the context of the original claim. Assume the population is normally distributed.