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,489 were in​ favor, 395 were​ opposed, and 115 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 115 subjects who said that they were​ unsure, and use a 0.01 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5 What does the result suggest about the​ politician's claim?

Answer 1

Answer:-

Given That:-

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,489 were in​ favor, 395 were​ opposed, and 115 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 115 subjects who said that they were​ unsure, and use a 0.01 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5

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

of these polled 489 were in favour 395 were opposed and 115 were unsure

x=489

n=489+395

n=884

Test statistics

This is test statistic value

p-value [Two tailed test]

Since p-value <0.05 ,reject the null hypothesis.

We conclude that we have sufficient evidence to support the claim.