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Seventy-four percent of the light aircraft that disappear while in flight in a certain country are subsequently discovered. Of the aircraft that are discovered, 68% have an emergency locator, whereas 87% of the aircraft not discovered do not have such a locator. Suppose a light aircraft has disappeared. (Round your answers to three decimal places.)
(a) If it has an emergency locator, what is the probability that it will not be discovered?
(b) If it does not have an emergency locator, what is the probability that it will be discovered?
What are post hoc comparisons, and why do researchers make them? Why do researchers not use the Bonferroni procedure of procedures for post hoc comparisons?
Formulating null and alternative hypothesis to test the claim averaging about $5000.
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Use the binomial distribution with n = 20, π = .5 to compare accuracy of the normal approximation to the binomial. Compute the exact probabilities and corresponding normal approximations for y = 5.
an investigation of the effectiveness of a training program to improve customer relationships included a pre-training
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1. how do correlation coefficients summarize the information in scatter-plot? what do scatter-plots reveal that
What is the probability that the next person who comes to your emergency room will be a hypertensive, indigent, man?
Is there any evidence to suggest that the true mean time to complete the safety checkup is greater than 30 minutes?
a stat professor has observed that for several years about 14 of the students who initially enroll in his introduction
State the various competitive forces existing in the computer and laptop manufacturing industry as per Porter's approach to industry analysis
Using the .05 level, what should the experimenter conclude? (a) Use the steps of hypothesis testing, (b) sketch the distributions involved.
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