A higher proportion of students in public schools received free lunch in 2018 than in 2008. Homeowners under the age of 25 spend more annually on education than those age 25 and over. A higher percentage of millennials rate a workplace that encourages creativity as extremely important than do Gen Xers. The actual amount of soda in a Pepsi bottle varies differently than the actual amount of soda in a Coca-Cola bottle. Taking Prescription X lowers systolic blood pressure for those with hypertension (high blood pressure) when compared against a placebo. All previous sentences are claims made on two populations. Chapter 9 looks at methods for testing claims like these.

1. Identifying Claims: Identify the claim in statistic notation.

1. The mean distance traveled to school by students at South Piedmont is less than 9 miles.

(b) A majority of Americans are optimistic about the impact artificial intelligence will have on people's lives and work.

(c) The average price consumers in the United States spend out of pocket on education annually has increased from the 2010 average price of $1,074.

(d) The percentage of those in favor is 0.05%.

Concluding on the Original Claim: Make a conclusion on the original claim with the given information.

(a) The original claim is the null hypothesis and the conclusion on the null is reject.

(b) The original claim is the null hypothesis and the conclusion on the null is fail to reject.

(c) The original claim is the alternative hypothesis and the conclusion on the null is reject.

(d) The original claim is the alternative hypothesis and the conclusion on the null is fail to reject.