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A game is played as follows: A player places a bet. Then, she rolls a 20-sided die with the numbers 1 - 20 on it. If the die lands on an even number, the player wins $5. If the die lands on a 1, 5, 7, or 13, the player wins $10. Otherwise, the player loses. How could the game be adjusted in order to make this a fair game with a $3.50 bet? (Hint, there is more than one way to change the game to make it fair, but remember the net result needs to be that the expected outcome is $0.)
Do you think this sample would be representative for the question of interest? Explain.- Is the sampling plan that was used a probability sampling plan? Explain.
State two possible reasons for this observed high number of runaway vehicles.- Why do you think Toyota issued this recall?
question an open label study where participant are aware of the treatment they are taking is conducted to assess the
Consider the events A1 5 an ace is selected on the first draw; A2 5 an ace is selected on the second draw.- Find P(A2 | A1) and P(A2). Are the events A1 and A2 independent? Justify your answer.
Two populations are independently surveyed using simple random samples of size n, and two proportions, p1 and p2, are estimated.
At the end of the year, patients were diagnosed as healthy or relapsed, as summarized in the table:- Do these results provide evidence that Prozac might be helpful in treating anorexia? Explain.
Data on the magnitudes of earthquakes near Fiji are available on the website for this book. Estimate the cdf F(x). Compute and plot a 95 percent con?dence envelope for F (as described in the appendix).
If the station did not have access to appropriate computer software or a table of random digits, explain how they could randomly choose a birthday each day.
From given sample results, and using the 0.05 level of significance, what conclusion would the student reach with regard to the bank manager's claim?
A Department of Trasporta repot about air travel found that nationwide, 76% of all flights are on time. What is the probablity that you will have have excatly 80 flights on time?
How large a c2 statistic would you need to have significant evidence against the company's claim at the a = 0.05 level? At the a = 0.01 level?
Suppose we flip two pennies, three nickels, and four dimes. What is the probability that the total value of all coins showing heads is equal to $0.31?
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