An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.6 minutes. A random sample of 35 dive durations has a mean of 12.4 minutes and a standard deviation of 2.3...

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Extracted text: An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.6 minutes. A random sample of 35 dive durations has a mean of 12.4 minutes and a standard deviation of 2.3 minutes. At a = 0.01 is there enough evidence to reject the oceanographer's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (b) Use technology to find the P-value. Find the standardized test statistic, t. t = 2.06 (Round to two decimal places as needed.) Obtain the P-value. P = 0.047 (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Fail to reject Ho because the P-value is greater than a. (d) Interpret the decision in the context of the original claim. There is enough evidence at the 1% level of significance to reject the claim that the mean dive duration of a North Atlantic right whale is 11.6 minutes. (Type integers or decimals. Do not round.)


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