Question
In: Statistics and Probability
Trials in an experiment with a polygraph include 98 results that include 24 cases of wrong...
Trials in an experiment with a polygraph include 98 results that include 24 cases of wrong results and 74 cases of correct results. Use a 0.05 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 theP-value method. Use the normal distribution as an approximation of the binomial distribution.
Solutions
orchestra answered 2 years agoRelated Solutions
Trials in an experiment with a polygraph include 98 results that include 23 cases of wrong...
Trials in an experiment with a polygraph include 98 results that
include 23 cases of wrong results and 75 cases of correct results.
Use a 0.05 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...
Trials in an experiment with a polygraph include 99 results that include 24 cases of wrong...
Trials in an experiment with a polygraph include 99
results that include 24 cases of wrong results and 75 cases of
correct results. Use a 0.01 significance level to test the claim
that such polygraph results are correct last then 80% of the time.
identifying 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 and use the normal distribution as an approximation...
Can you explain how to do on TI-84 . Trials in an experiment with a polygraph...
Can you explain how to do on TI-84 .
Trials in an experiment with a polygraph include 98 results that
include 23 cases of wrong results and 75 cases of correct results.
Use a 0.05
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...
Although polygraph tests are thought to be quite accurate, the results of a test may be...
Although polygraph tests are thought to be quite accurate, the
results of a test may be misleading.
Suppose we have the following facts
18% of people who take a polygraph test lie.
85% of people who lie will fail the test.
7% of people who tell the truth will fail the test.
(a) If a person fails the polygraph test, what is the
probability that he or she lied?
(b) If a person passes the polygraph test, what is the...
Describe the Meselson-Stahl experiment. Include their hypotheses, experimental design, results, and conclusions.
Describe the Meselson-Stahl experiment. Include their
hypotheses, experimental design, results, and conclusions.
A doctor released the results of clinical trials for a vaccine to prevent a disease. In...
A doctor released the results of clinical trials for a vaccine
to prevent a disease. In these clinical trials, 20,000 children
were randomly divided in two groups. The subjects in group 1 (the
experimental group) were given the vaccine, while the subjects in
group 2 (the control group) were given a placebo. Of the 10,000
children in the experimental group, 230 developed the disease. Of
the 10,000 children in the control group, 480 developed the
disease. Estimate the difference in...
There is a total of 6 trials for an experiment involving the measurement of standard enthalpies...
There is a total of 6 trials for an experiment involving the
measurement of standard enthalpies (kcal/mol).
a) If additional data points are taken but the standard
deviation and mean remain unchanged, what will happen to the 95%
confidence interval? Would it increase, decrease, or stay the
same?
b) What are the different ways to identify a systematic error in
her data for this experiment ?
The table below includes results from polygraph (lie detector) experiments conducted by researchers. In each case,...
The table below includes results from polygraph (lie detector)
experiments conducted by researchers. In each case, it was known if
the subjected lied or did not lie, so the table indicates when the
polygraph test was correct. Use a 0.05 significance level to test
the claim that whether a subject lies is independent of the
polygraph test indication. Do the results suggest that polygraphs
are effective in distinguishing between truth and lies?
. Determine the null and alternative hypotheses.
A....
4.4/7. 7.The accompanying table contains the results from experiments with a polygraph instrument. Find the probabilities...
4.4/7.
7.The accompanying table contains the results from experiments
with a polygraph instrument. Find the probabilities of the events
in parts (a) and (b) below. Are these events unlikely?
_ No_(Did_Not_Lie) Yes_(Lied)
Positive_test_result 9 22
Negative_test_result 40 15
a. Four of the test subjects are randomly
selected with replacement, and they all had true negative test
results.
b. Four of the test subjects are randomly
selected without replacement, and they all had true negative test
results.
a. The probability that...
The table below includes results from polygraph (lie detector) experiments conducted by researchers. In each case,...
The table below includes results from polygraph (lie detector)
experiments conducted by researchers. In each case, it was known
if the subjected lied or did not lie, so the table indicates when
the polygraph test was correct. Use a 0.05 significance level to
test the claim that whether a subject lies is independent of the
polygraph test indication. Do the results suggest that polygraphs
are effective in distinguishing between truth and lies?
Did the Subject
Actually Lie?
No (Did Not...
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