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A company administers an "aptitude test for managers" to aid in selecting new management trainees. Prior experience suggests that 60 percent of all applicants for management trainee positions would be successful if they were hired. Furthermore, past experience with the aptitude test indicates that 85% of applicants who turn out to be successful managers pass the test and 90% of applicants who turn out not to be successful managers fail the test.
If an applicant passes the "aptitude test for managers," what is the probability that the applicant will succeed in a management position?a. 0.55b. 0.51c. 0.93d. 0.8
What is the probability an applicant does not pass the test and is a successful manager?a. 0.55b. 0.09c. 0.36d. 0.04
Sketch the distributions involved, and (c) explain your answer to someone who is familiar with the t test for a single sample but not with the t test for independent means.
Suppose it has been determined that the average number of customers waiting for service is 1.929. There are two servers. Determine:
Provide an example of an application of the normal distribution. Explain why standard normal distribution can be used to find the probabilities for all normal distributions?
A review of voter registration records in a small town yielded the following table of the number of males and females registered as Democrat, Republican, or some other affiliation.
Identify each variable in the formula for the binomial probability density function. Also, explain what the fraction: n! / (n-x)!x! calculates.
How many city residents must be surveyed in order to have a 95 percent with a precision of plus/minus 3 trips per month.
Find out the regression variable that correlates best. Among which regression variable, carbon dioxide or methane correlates best with the earth's surface temperature.
A random samle of 12 college freshmen is obtained. The probability that exactly two of the 12 freshmen will not return for their sophmore year is?
Compute the value of the test statistic. Determine the p-value; and at 93.7% confidence, test the above hypotheses.
This second sample had an average response of 132 with a sample variance of 16. What is the pooled standard deviation for this problem?
Five sprinkler systems are installed in a laboratory. In the event of a fire the probability of each one working properly is 0.95. If a fire should occur what is the probability thatall 5 sprinklers will be activated.
If a woman gets a SAT score that is the 67th percentile, find her actual SAT score and her equivalent ACT score. If a woman gets a SAT score of 1220, find her equivalent ACT score.
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