Consider the situation below. Find at least 2 concerns with proceeding with a hypothesis test in this situation. An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.5 minutes. A second oceanographer, on a 1-week research expedition to Greenland, takes data for every North Atlantic right whale she sees while she is there and observes 14 dive durations that have a mean of 12.2 minutes. Based on this sample, the second oceanographer chooses to challenge the first oceanographer's claim. The second oceanographer claims the North Atlantic right whale has a mean dive duration is longer than 11.5 minutes. Edit View Insert Format Tools Table 12pt \( \vee \) Paragraph
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An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.5 minutes. A random sample of 35 dive durations has a mean of 12.3 minutes and a standard deviation of 2.1 minutes. At α = 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. H0: (1) _____ (2) _____ _____ Ha: (3) _____ (4) _____ _____ (Type integers or decimals. Do not round.) The claim is the (5) _____ hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. t = _____ (Round to two decimal places as needed.) Obtain the P-value. P = _____ (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. (6) _____ H0 because the P-value (7) _____ greater than α. (d) Interpret the decision in the context of the original claim. There (8) _____ enough evidence at the _____% level of significance to (9) _____ the claim that the mean dive duration of a North Atlantic right whale is (10) _____ _____ minutes. (Type integers or decimals. Do not round.)
Adi S.
an oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.5 minutes. A random sample of 33 dive durations has a mean of 12.3 minutes and a standard deviation of 2.3 minutes. At a=0.10
Hoan N.
Lucas F.
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