From previous studies, it is concluded that 30% of people support the death penalty. A researcher claims that the proportion is significantly different than 30% and decides to survey 400 working adults. Test the researcher's claim at the α=0.01α=0.01 significance level. Preliminary: Is it safe to assume that n≤0.05n≤0.05 of all subjects in the population? No Yes Verify nˆp(1−ˆp)≥10.np^(1-p^)≥10. Round your answer to one decimal place. nˆp(1−ˆp)=np^(1-p^)=  Test the claim: The null and alternative hypotheses are H0:p≤0.3H0:p≤0.3 Ha:p>0.3Ha:p>0.3 H0:μ=0.3H0:μ=0.3 Ha:μ≠0.3Ha:μ≠0.3 H0:μ≤0.3H0:μ≤0.3 Ha:μ>0.3Ha:μ>0.3 H0:p=0.3H0:p=0.3 Ha:p≠0.3Ha:p≠0.3 H0:μ≥0.3H0:μ≥0.3 Ha:μ<0.3Ha:μ<0.3 H0:p≥0.3H0:p≥0.3 Ha:p<0.3Ha:p<0.3 The test is      Based on the sample of 400 people, 36% people support the death penalty. What is the test statistic? Round your answer to two decimal places.

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From previous studies, it is concluded that 30% of people support the death penalty. A researcher claims that the proportion is significantly different than 30% and decides to survey 400 working adults. Test the researcher's claim at the α=0.01α=0.01 significance level.

Preliminary:

  1. Is it safe to assume that n≤0.05n≤0.05 of all subjects in the population?
    • No
    • Yes


  2. Verify nˆp(1−ˆp)≥10.np^(1-p^)≥10. Round your answer to one decimal place.

    nˆp(1−ˆp)=np^(1-p^)= 

Test the claim:

  1. The null and alternative hypotheses are
    • H0:p≤0.3H0:p≤0.3
      Ha:p>0.3Ha:p>0.3
    • H0:μ=0.3H0:μ=0.3
      Ha:μ≠0.3Ha:μ≠0.3
    • H0:μ≤0.3H0:μ≤0.3
      Ha:μ>0.3Ha:μ>0.3
    • H0:p=0.3H0:p=0.3
      Ha:p≠0.3Ha:p≠0.3
    • H0:μ≥0.3H0:μ≥0.3
      Ha:μ<0.3Ha:μ<0.3
    • H0:p≥0.3H0:p≥0.3
      Ha:p<0.3Ha:p<0.3


  2. The test is
        

  3. Based on the sample of 400 people, 36% people support the death penalty. What is the test statistic? Round your answer to two decimal places.
       

  4. What is the pp-value? Round your answer to four decimal places.
     

  5. Make a decision.
    • Do not reject the null hypothesis.
    • Reject the null hypothesis.


  6. Make a conclusion.
    • There is sufficient evidence that the proportion of people who people support the death penalty is significantly different than 30% at the α=0.01α=0.01 significance level.
    • There is not sufficient evidence that the proportion of people who people support the death penalty is significantly different than 30% at the α=0.01α=0.01 significance level. 
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