Suppose That in a Recent Poll of 1200 Adults Between

question 18

Multiple Choice

Suppose that in a recent poll of 1200 adults between the ages of 35 and 45, 38% surveyed said they have thought about getting elective plastic surgery. Find the 95% confidence interval for the proportion of adults ages 35 to 45 who have thought about getting elective plastic surgery then choose the correct interpretation. (Round to the nearest tenth of a percent)

• A)The population proportion of adults ages 35 to 45 who have thought about getting elective plastic surgery is between 35.2% and 40.7%, with a confidence level of 95%.
• B)There is a 95% chance that the population of adults ages 35 to 45 who have thought about getting elective plastic surgery is between 35.2% and 40.7%.
• C)There is a 95% chance that the population of adults ages 35 to 45 who have thought about getting elective plastic surgery is between 28.5% and 47.5%.
• D)The population proportion of adults ages 35 to 45 who have thought about getting elective plastic surgery is between 28.5% and 47.5%, with a confidence level of 95%.

Calculate and understand the standard error of the difference between two means.

Determine the critical value for hypothesis testing in different scenarios.

Understand the role and calculation of degrees of freedom in hypothesis testing.

Apply hypothesis testing concepts to various fields and research questions.

---

Definitions:

Ida B Wells

An African American journalist, abolitionist, and feminist who led an anti-lynching crusade in the United States during the 1890s.

Lynching

The illegal execution of an individual by a mob, often by hanging, without a legal trial, historically common in the United States as a form of racial terror against African Americans.

Memphis

A city in the southwestern part of the U.S. state of Tennessee, significant for its historical and cultural contributions.

Progressive State Politics

A political stance or movement emphasizing social reform, democratisation, and efforts to mitigate the effects of inequality and ensure the welfare of citizens through state intervention.