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ESP. Scientists wish to test the mind-reading ability of a person who claims to have ESP. They use five cards with different and distinctive symbols (square, circle, triangle, line, squiggle). Someone picks a card at random and thinks about the symbol. The mind reader must correctly identify which symbol was on the card. If the test consists of 100 trials, how many would this person need to get right in order to convince you that ESP may actually exist? Explain.
Find the mean, variance, and standard deviation of the duration of a tanning session time.- Find the probability that a randomly selected session has a duration within one standard deviation of the mean.
Use the frequency? distribution, which shows the number of American voters? (in millions) according to? age, to find the probability that a voter
lionel wants to play the crane machine arcade game the one with the mechanical claw to win a stuffed animal. he is good
Let X - 8 d 8 - X mean that X - 8 has the same distribution as 8 - X; thus X has a symmetric distribution about 8. Say that Y and X are independent random variables and Y has a distribution which is also symmetric about 8. Show that X - Y has a di..
assume that the data has a normal distribution. also assume that the standard deviation of the population sigma is
what are the four states of the decision environment? discuss which management science techniques could be useful for
In each of the given situations, indicate whether the potential bias is a selection bias, a nonparticipation bias, or a response bias.
The probability that a student passes mathematics is 2/3 and the probability that he passes biology is 4/9. If the probability of passing one course is 4/5, what is the probability that he will pass both courses?
With a sample standard deviation of 33 miles. At the 0.05 level of significance is there a difference in the mean number of miles traveled between the two groups?
Identify a cam shaft, red, green and yellow (or any combination of these three colors) could not be used to identify another part. How many parts can the paint department code?
a hospital conducted a study of waiting time in its emergencyroom. the hospital has a main campus and three satellite
If these data are a random sample of office employees around the country, do you think that more than half of office employees participate in such pools during March Madness? Explain your answer.
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