Question

Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos." Of those polled,

485485

were in favor,

396396

were opposed, and

122122

were unsure. A politician claims that people don't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin toss. Exclude the

122122

subjects who said that they were unsure, and use a

0.010.01

significance level to test the claim that the proportion of subjects who respond in favor is equal to

0.50.5.

What does the result suggest about the politician's claim?

Identify the null and alternative hypotheses for this test. Choose the correct answer below.

A.

Upper H 0H0 :

pequals=0.50.5

Upper H 1H1 :

pless than<0.50.5

B.

Upper H 0H0 :

pequals=0.50.5

Upper H 1H1 :

pnot equals≠0.50.5

Your answer is correct.

C.

Upper H 0H0 :

pnot equals≠0.50.5

Upper H 1H1 :

pequals=0.50.5

D.

Upper H 0H0 :

pequals=0.50.5

Upper H 1H1 :

pgreater than>0.50.5

Identify the test statistic for this hypothesis test.

The test statistic for this hypothesis test is

nothing.

(Round to two decimal places as needed.)

p-value?

Answer 1

\from above

for hypothesis: option b is correct

test statistic for this hypothesis test z =3.00 (try 3.03 if this comes wrong and revert)

p value=0.0026 (try 0.0024 or 0.0027 if this comes wrong and revert)