Question
A researcher claims that the stomachs of blue crabs from Location A contain more fish than the stomachs of blue crabs from Location B. The
A researcher claims that the stomachs of blue crabs from Location A contain more fish than the stomachs of blue crabs from Location B. The stomach contents of a sample of 16 blue crabs from Location A contain a mean of 196 milligrams of fish and a standard deviation of 37 milligrams. The stomach contents of a sample of 7 blue crabs from Location B contain a mean of 187 milligrams of fish and a standard deviation of 44 milligrams. At =0.01, can you support theresearcher's claim? Assume the population variances are equal.
(a) Identify the null and alternative hypothesis
(b) Find the standardized test statistic for U1 -U2
(c) Calculate the P-value
(d) state the conclusion
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