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Scores on an exam follow an approximately Normal distribution with a mean of 76.4 and a standard deviation of 6.1 points. What is the minimum score you would need to be in the top 4%?
A. 87.08
B. 86.08
C. 64.72
D. 65.72
A certain airplane has 2 independent alternators to provide electrical power. The probability that a given alternator will fail on a 1 hour flight is 0.02. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the othe..
The width of a confidence interval will be:
in estimating the cost of a pile of bricks measured as 2m15m1.2mthe tape is stretched 1 beyong the standard length if
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you have purchased five shares of stock in diversified machine tools which has a mean value of 25 and a standard
only using standard six sided dice andor a standard deck of playing cards create a casino game that has all of the
Testing for two Proportions - Is the difference between the averages statistically significant?
If possible. Find P( )
What percentage of population scored between the mean and Jorge?
A researcher conducts an independent -measures research study and obtains t= 2.070 with df = 28. How many individuals participated in the entire research study?
The average score, in the sample, was 84 with a sample standard deviation of 3.5. The 95% confidence interval for the average examination score of the population of the examinations is?
A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of $2.91.
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