Question:

Karlha reads that 38% of American teenagers say chocolate is their favorite flavor of ice cream. Karlha believes that a greater proportion of teenagers in Arizona say chocolate is their favorite flavo

Karlha reads that 38% of American teenagers say chocolate is their favorite flavor of ice cream. Karlha believes that a greater proportion of teenagers in Arizona say chocolate is their favorite flavor of ice cream. She surveys 240 teenagers in Arizona and finds that 106 of them say chocolate is their favorite flavor. Assume the conditions for performing a significance test using a z-statistic are met and use a significance level of α = 0.05. Calculate the p-value and make a conclusion.
○ The p-value is 0.02442. Karlha rejects the null hypothesis because this suggests that more than 38% of teenagers in Arizona say chocolate is their favorite ice cream flavor.
○ The p-value is 0.04884. Karlha rejects the null hypothesis because this suggests that more than 38% of teenagers in Arizona say chocolate is their favorite ice cream flavor.
○ The p-value is 0.03438. Karlha rejects the null hypothesis because this suggests that more than 38% of teenagers in Arizona say chocolate is their favorite ice cream flavor.
○ The p-value is 0.95486. Karlha fails to reject the null hypothesis because this suggests that more than 38% of teenagers in Arizona say chocolate is their favorite ice cream flavor.

Karlha reads that 38% of American teenagers say chocolate is their favorite flavor of ice cream. Karlha believes that a greater proportion of teenagers in Arizona say chocolate is their favorite flavor of ice cream. She surveys 240 teenagers in Arizona and finds that 106 of them say chocolate is their favorite flavor. Assume the conditions for performing a significance test using a z-statistic are met and use a significance level of α = 0.05. Calculate the p-value and make a conclusion. ○ The p-value is 0.02442. Karlha rejects the null hypothesis because this suggests that more than 38% of teenagers in Arizona say chocolate is their favorite ice cream flavor. ○ The p-value is 0.04884. Karlha rejects the null hypothesis because this suggests that more than 38% of teenagers in Arizona say chocolate is their favorite ice cream flavor. ○ The p-value is 0.03438. Karlha rejects the null hypothesis because this suggests that more than 38% of teenagers in Arizona say chocolate is their favorite ice cream flavor. ○ The p-value is 0.95486. Karlha fails to reject the null hypothesis because this suggests that more than 38% of teenagers in Arizona say chocolate is their favorite ice cream flavor.