Question

In 2007, a Gallup poll estimated that 45% of U.S. adults rated their financial situation as “good.” We want to know if the proportion is smaller this year. We gather a random sample of 100 U.S. adults this year and find that 39 rate their financial situation as “good.” Does the test indicate that the proportion is smaller this year?

Test and CI for One Proportion Test of p 0.45 vs p < 0.45 95% Upper Sample p Sample X Bound Z-Value P-Value 0.485600 1 39 100 0.390000 -1.21 0114

Choose correct answer

Yes

No

Answer 1

Solution :

Given that,

P-value = 0.114

P-value > alpha

Fail to reject the null hypothesis .

The test does not indicate that the proportion is smaller this year .

No