Question
Asked Jan 17, 2020
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Stem Cell Survey Newsweek conducted a poll in which respondents 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, 481 were in favor, 401 were opposed, and 120 were unsure. Use a 0.01 significance level to test the claim that there is no difference between the proportions of those opposed and those in favor.

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Expert Answer

Step 1

The claim is that there is no difference between the proportions of those opposed and those in favor for the null hypothesis. Thus, the alternative hypothesis is that there is a difference between the proportions of those opposed and those in favor.

The hypotheses are given below:

Statistics homework question answer, step 1, image 1
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Step 2

Test statistic:

Here, 481 were in favor using federal tax dollars to fund medical research using stem cells obtained from human embryos, 401 were opposed using federal tax dollars to fund medical research using stem cells obtained from human embryos.

Statistics homework question answer, step 2, image 1
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Step 3

Substitute 401 for x and 882...

Statistics homework question answer, step 3, image 1
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