Test Hypotheses about a Population Proportion
-According to a prestigious historical society, in $1999,7.2 \%$ of recent high school graduates believe that the Romans invented mayonnaise. A classics scholar believes that the percentage has increased since then. He randomly selects 125 recent high school graduates and finds that 17 of them believe in the Roman invention of mayonnaise. Test this researcher's claim at the $\alpha = 0.01$ level of significance.

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The Answer of Test Hypotheses about a Population Proportion
-According to a prestigious historical society, in $1999,7.2 \%$ of recent high school graduates believe that the Romans invented mayonnaise. A classics scholar believes that the percentage has increased since then. He randomly selects 125 recent high school graduates and finds that 17 of them believe in the Roman invention of mayonnaise. Test this researcher's claim at the $\alpha = 0.01$ level of significance.

Test Hypotheses About a Population Proportion -According to a Prestigious 1999,7.2%1999,7.2 \%1999,7.2%

Test Hypotheses About a Population Proportion
-According to a Prestigious $1999,7.2 \%$