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Suppose you play a game at a casino where your probability of winning each game is 0.49. On each game, you bet $10, which you either win or lose.
Let P(n) be the probability that you are ahead by at least $50 after n games.
Graph this probability versus n for n equal to multiples of 50 up to 1000.
Discuss the behavior of this function and why it behaves as it does.
which is a characteristic of the variance inflation factor vif?a. it is insignificant unless the corresponding
a standard deviation of 5 miles per gallon. At α=0.05, can you reject the auto maker's claim that the mean gas mileage of its luxury sedan is at least 25 miles per gallon?
Gender differences in dream content are well documented (Winget & kramer, 1979). Suppose a researcher studies aggression content in the dreams of men and women.
In a two-tailed hypothesis testing at significance level α of 0.05, the test statistic is calculated as 2. If P(X >2) = 0.03, then we have sufficient evidence to reject the null hypothesis.
For the most recent year available, the mean annual cost to attend a private university in the United States was $20,182. Assume the distribution of annual costs follows the normal probability distribution and the standard deviation is $4,400.
understand interpret and be critical of the concepts of statistical signicance and p-values. statistical signicance is
Identify each of the random variables as continuous or discrete.
Of 346 vending machines tested, 12 are found to be defective. Construct the 98 % confidence interval for the proportion of all defective vending machines.
there are 150 books in a professors office. you take a random sample of 8 of these books and count the number of pages
a pollster took a random sample of 100 students from a large university and computed a 95 confidence interval to
Calculate a 95% confidence interval on the average weight of packaged mustard seed. Explain very carefully to the packaging workers what the 95% confidence interval numbers mean. Include your Excel output. Is there anything you would want to note ..
The diameters of a wooden dowel produced by a new machine are normally distributed with a mean of 0.55 inches and a standard deviation of 0.01 inches. What percent of the dowels will have a diameter less than 0.57?
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