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A statistic practitioner working for Major League Baseball determined the probability that the hitter will be out on ground balls is .75. in a game where there are 20 ground balls, find the probability that all of them were out.
Describe a business situation that you have had or might face that will benefit from the use of confidence intervals?
A certain airplane has two independent alternators to provide electrical power.
Find the 90% confidence interval for the variance and standard deviation for the time it takes a state police inspector to check a truck for safety if a sample of 27 trucks has a standard deviation of 6.8 minutes.
At 95% confidence using the critical value approach, test to see if the percentage of defective systems produced by x-Game has exceeded the industry standard.
What is the predictive value of a negative test result? In other words, what is the probability that an individual who returns a negative tests for hypertension is not hypertensive? Please give your answer to 3 decimal places.
At the 5% level of significance, can we infer that branch A has a significantly higher proportion of satisfied customers than branch B?
Determine what analysis would you do on each problem (ie, one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)?
Create Gantt chart using MSP. Suppose the 5 day workweek, compute critical path of the project.
Determine the cost Xs to develop the support system for which the probability of exceeding Xs is equal to 0.01?
At the .05 significance level, can we conclude that the guideline is still reasonable?
Suppose that the mean of the annual return for common stocks from 2000 to 2012 was 8.5%, and the standard deviation of the annual return was 25.2%.
Use the binomial distribution formula to calculate the probability that:
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