Of 520 samples of seafood purchased from various kinds of food stores in different regions of a country and geneticallycompared to standard gene fragments that can identify the species, 81% were mislabeled.a) Construct a 95% confidence interval for the proportion of all seafood sold in the country that is mislabeled ormisidentified.b) Explain what your confidence interval says about seafood sold in the country.c) A government spokesperson claimed that the sample size was too small, relative to the billions of pieces of seafoodsold each year, to generalize. Is this criticism valid?a) What is the 95% confidence interval?The 95% confidence interval is from 85.6 % to 92.4%.(Round to one decimal place as needed.)

Given Sample size n=520 Sample proportion P=0.81

Answered: Of 520 samples of seafood purchased…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A study was performed to determine the percentage of people who wear life vests while out on the water. A researcher believed that the percentage was different for those who rode jet skis compared to those who were in boats. Out of 400 randomly selected people who rode a jet ski, 88% wore life vests. Out of 250 randomly selected boaters, 82.4% wore life vests. Using a 0.01 level of significance, test the claim that the proportion of people who wear life vests while riding a jet ski is not the same as the proportion of people who wear life vests while riding in a boat. Let jet skiers be Population 1 and let boaters be Population 2. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. H0: p1=p2 Ha: p1⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯p2 Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places. Step 3 of 3: Draw a conclusion and interpret the decision.
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