Researchers with Oceana, a group dedicated to preserving the ocean ecosystem, reported

finding that 33% of fish sold in retail outlets, grocery stores, and sushi bars throughou

the United States had been mislabeled (San Francisco Chronicle website, February 21.

2013). Does this mislabeling differ for different species of fish? The following data show

the number labeled incorrectly for samples of tuna and mahi mahi.

Tuna

Mahi Mahi

Sample

Mislabeled

220

99

160

56

What is the point estimate of the proportion of tuna that is mislabeled?

What is the point estimate of the proportion of mahi mahi that is mislabeled?

Provide a 95% confidence interval estimate of the difference between the proportion

of tuna and mahi mahi that is mislabeled.

Researchers with Oceana, a group dedicated to preserving the ocean ecosystem, reported finding that 33% of fish sold in retail outlets, grocery stores, and sushi bars throughout the United States had been mislabeled (San Francisco Chronicle website, February 21, 2013). Does this mislabeling differ for different species of fish? The following data show the number labeled incorrectly for samples of tuna and mahi mahi.Tuna Mahi Mahi Sample 220 160 Mislabeled 99 56 a. What is the point estimate of the proportion of tuna that is mislabeled? b. What is the point estimate of the proportion of mahi mahi that is mislabeled? c. Provide a 95% confidence interval estimate of the difference between the proportion of tuna and mahi mahi that is mislabeled