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A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour flight is .02. What is the probability that
a) both will fail?
b) Neither will fail?
c) One or the other will fail? Show all steps carefully
How many departments would they need to survey to achieve this level of accuracy with 95% confidence?
Where does the p-value come from for the spatial scan statistic used in SaTScan? How Monte Carlo simulation is used to derive a p-value for a cluster ?
Run a multiple regression and interpret all the findings, R 2 , F, IV coefficients, and the intercept. Then in paragraph format, identify and report the following:
What id Steve's grade point average at graduation and what is Steve's median grade point at graduation
Would the null hypothesis be accepted or rejected in this case?
Carry out suitable multiple comparison procedure to determine the source of the difference.
A teacher gave a 25 question multiple choice test. After scoring the tests, she computed a mean and standard deviation of the scores. The standard deviation was 0. Based on this information
Critically discuss the probability that more than 175 cable households rate cable companies as good or excellent in quality transmissions?
2 to every even-numbered card, with aces being 1s. Determine the frequencies of 0, 1, and 2. Use SPSS to get the value of test statistic and p-value.
Average cost of $3,200 for products. n=25. After review it seems mean cost is $2,000 with a standard deviation of $150. Test that average cost is $3,200 or more versus $2,000. assume level of significance of .05.
A small New England college has a total of 400 students.The Math SAT is required for admission, and the mean score of all 400 students is 620. The population standard deviation is found to be 60. The formula for a 95% confidence interval yields th..
Choice of exponential smoothing constant w has little or no effect on forecast values using exponential smoothing.
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