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A federal report find that a lie detector test given to truthful persons have a probability of 0.2 of suggesting that the person is deceptive. A company asks 12 job applicants to take a lie detect test. Suppose that all 12 applicants answer truthfully.
1.What is the probability that exactly one is being deceptive.
2.What is the probability that at most one is being deceptive.
3.What is the mean and standard deviation of this distribution.
Test whether the relationship between the plan at retirement and residential area using Chi square test.
Describe the factors that might cause variation in weight of Tootsie Rolls during manufacture.
Following are the data collected. Should the head of the Bureau be concerned about the time taken at lunch by employees? Why?
If life of wild pheasants follows a normal distribution with a mean of 9 months and a variance of 9, what percent of the population will be less than 11 months of age.
To recognize the width of the confidence interval.As the confidence level \"1 - α\" increases, the width of the confidence interval.
According to a hospital administrator, historical records over the past 10 years have shown that 20 percent of major surgery patients are dissatisfied with after-surgery care in the hospital. A scientific poll based on 400 hospital patients has ju..
Finding Normal probabilities using standard normal table or Excel built in functions
Draw and label distribution used and position of values found.
Determine mean and standard deviation for number of erroneous returns per batch.
What sample size would be needed to estimate the true proportion of students at your college
Assuming that the dogs did better than what would be expected with random guessing, did they do well enough to be used for actual medical diagnoses? Why or why not?
An experiment was performed to investigate lifetime of a component exposed to high heat. Three different oven types were used at either 550°F or 600°F.
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