The Centers for Disease Control (CDC) would like to test the hypothesis that the

Question

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,

1. the correct hypothesis statement for this hypothesis test would be

2. If Population 1 is defined as this year and Population 2 is defined as last year, the p-value for this hypothesis test is ________.

0.1877

0.0301

0.1511

0.0064

A.

.

B.

.

C.

.

D.

.

2. If Population 1 is defined as this year and Population 2 is defined as last year, the p-value for this hypothesis test is ________.

A.

0.1877

B.

0.0301

C.

0.1511

D.

0.0064

Explanation / Answer

H0 : p1 - p2 0; H1 : p1 - p2 > 0

p1=0.448

p2=0.3

P = (x1+x2)/(n1+n2)

=0.3698

  

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.