A comparative study of organic and conventionally grown produce was checked for the presence of...
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A comparative study of organic and conventionally grown produce was checked for the presence of E coli Results are summarized below Sample Size E coli Prevalence O Organic Conventional C Ho P P 0 H P P 0 O Ho P1 P 0 Ha P P 0 Is there a significant difference in the proportion of E coli in organic vs conventionally grown produce Test at a 0 10 Let d Organic Conventional a Formulate the hypotheses Ho P P 0 Ha P P 0 Ho P1 P 0 Ha P1 P 0 Ho P1 Ha P1 200 P 0 P 0 520 2 21 b What is the value of the test statistic Round your answer to three decimal places 4 100 x c What is the p value Round your answer to three decimal places p value d What is your conclusion O Do not reject Ho We cannot conclude that there is a significant difference in the proportion of E coli in organic vs conventional produce O Do not reject Ho We can conclude that there is a significant difference in the proportion of E coli in organic vs conventional produce O Reject Ho We can conclude that there is a significant difference in the proportion of E coli in organic vs conventional produce O Reject Ho We cannot conclude that there is a significant difference in the proportion of E coli in organic vs conventional produce 9
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