The Centers for Disease Control (CDC)would Like to Test the Hypothesis

question 9

Multiple Choice

The Centers for Disease Control (CDC) would like to test the hypothesis that the proportion of obese adults in the U.S. has increased this year when compared to last year. A random sample of 125 adults this year found that 56 were obese. Last year, a random sample of 140 adults found that 42 were obese. If Population 1 is defined as this year and Population 2 is defined as last year, the correct hypothesis statement for this hypothesis test would be

• A)H₀: p1 - p2 c 0; H₁: p1 - p2 < 0.
• B)H₀: p1 - p2 = 0; H₁: p1 - p2 × 0.
• C)H₀: p1 - p2 < 0; H₁: p1 - p2 c 0.
• D)H₀: p1 - p2 c 0; H₁: p1 - p2 > 0.

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Definitions:

Operations

The day-to-day activities required for continued business functioning, focusing on manufacturing, providing services, or other core business processes.

Social Security Taxes

Taxes collected by the government to fund the Social Security program, which provides retirement, disability, and survivorship benefits.

Medicare Taxes

Taxes deducted from employee paychecks and also matched by employers to fund the Medicare program, a federal health insurance program for individuals who are 65 and older and for some younger people with disabilities.

Accrued Salaries

Salaries that have been earned but not yet paid to employees by the end of an accounting period.