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6.2% of dvd of a certain type are defective.let the random variable x represent the number of defective dvd players among 200 randomly selected dvd of this type suppose u have to find the probability x is less than 8 which distribution does this have?
Delivery Format The General Social Survey asks, "About how often did you have sex in the past 12 months?" About 47% of respondents indicated they had sex at least once a week.
Crete a 90% confidence interval for mean Secchi dish measurement.
There are three flight phases. At α = 0.05, is the cockpit noise level independent of flight phase?
Where should the warranty limits be set so that only 10% of the TVs need repairs at the manufacturer's expense?
At 0.05 level of significance, is there enough evidence to conclude that difference exists between proportion of students who have ear infections at one school and the other?
Estimate with 95% confidence the mean reduction in time it takes for someone who has taken the sleeping pill to fall asleep.
Let x be average number of employees in group health insurance plan and y be average administrative cost as percentage of claims. Determine sample correlation coefficient.
Test whether the weight reducers on average will lose less than 10 pounds using P-value approach.
If the standard deviation of the process is unknown, another approach is to use the sample range as a measure of process variability. Calculate the control limits for the above process using the sample range.
Suppose 1.5 percent of the antennas on new Nokia cell phones are defective. For a random sample of 200 antennas, find the probability that:
R1 signifies the first Poisson event time after m (or 1 if there are no Poisson events in [m,1]), then it would be learned that marked position lies between L1 and R1.
Specify the appropriate null and alternative hypotheses if we wish to test the research hypothesis that the mean GHQ score for all employed men exceeds 10.
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