Let p be the population proportion of correct polygraph results. Identify the null and alternative hypotheses. Choose the correct answer below. B. Ho: p= 0.80 O A. Ho: p=0.20 H: p>0.20 H,: p<0.80 O D. Ho: p= 0.20 O C. Ho: p= 0.80 H,: p>0.80 H;: p#0.20 O E. Ho p=0.20 H,: p<0.20 O F. Ho: p= 0.80 H,: p#0.80 The test statistic is z= (Round to two decimal places as needed.)

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Trials in an experiment with a polygraph include 96 results that include 23 cases of wrong results and 73 cases of correct results. Use a 0.01
significance level to test the claim that such polygraph results are correct less than 80% of the time. Identify the null hypothesis, alternative
hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value
method. Use the normal distribution as an approximation of the binomial distribution.
Let p be the population proportion of correct polygraph results. Identify the null and alternative hypotheses. Choose the correct answer below.
O A. Ho: p=0.20
B. Ho: p=0.80
H;: p>0.20
H,: p<0.80
O D. Ho: p=0.20
H;: p#0.20
O C. Ho: p= 0.80
H;: p>0.80
OF. Ho: p=0.80
O E. Ho: p=0.20
H1: p<0.20
H,: p#0.80
The test statistic is
=|: (Round to two decimal places as needed.)
Transcribed Image Text:Trials in an experiment with a polygraph include 96 results that include 23 cases of wrong results and 73 cases of correct results. Use a 0.01 significance level to test the claim that such polygraph results are correct less than 80% of the time. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method. Use the normal distribution as an approximation of the binomial distribution. Let p be the population proportion of correct polygraph results. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: p=0.20 B. Ho: p=0.80 H;: p>0.20 H,: p<0.80 O D. Ho: p=0.20 H;: p#0.20 O C. Ho: p= 0.80 H;: p>0.80 OF. Ho: p=0.80 O E. Ho: p=0.20 H1: p<0.20 H,: p#0.80 The test statistic is =|: (Round to two decimal places as needed.)
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