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One of the points is suspected of being a bivariate outlier. When this point is removed, the new correlation is r = -.833. Is this point likely to be a bivariate outlier? Explain your answer.
The following stem plot represents the yearly percentage increases in Dickinson's comprehensive fees over the past 22 years. (3 | 8 means that one year had a percentage increase of 3.8%.)
The top motivation is for using a credit card. Can you conclude that there has been a chagne in the claimed or expected distribution? Use a =0.025.
What is the probability that a roulette ball will come to rest on an even number other than 0 and 00?
You want to test the hypothesis that the mean age for teachers is equal to 50. If you take a sample of 64 observations and find a sample mean of 49
The MBASAL file contains the salary offer (in thousands of dollars) received by each member of a sample of 50 MBA students who graduate from the graduate school of management at Rutgers
Would you recommend test- ing H0 : m = 5 versus Ha : m> 5 or H0 : m= 5 versus Ha : m
An industrial chemical to retard the spread of fire in paint has been developed. From past experience, 48% of sales calls will result in an order.
Bill calculates a linear correlation coefficient between two variable as 1.20. How would you interpret this?
Assume in a single game sudden death playoff between team A and team B that team A would win with probability 0.6.
Welcome a woman taking the initiative in asking for a date. What is the probability that seven (7) of the men say NO.
At the .01 signficance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
If he knows that the measurements follow a normal distribution and the standard deviation for this procedure is 1.2 degrees, what is the confidence interval for the population mean at a 95% confidence level?
Calculate a 90% CI for the population proportion of Americans who believe there is intelligent life on other planets.
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