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A large hospital administrators hiring firm tests job applicants who recently graduated from college. The test scores are normally distributed with a mean of 500 and a standard deviation of 50. Many hospitals considering placing a new hire in an upper level management position if the person scores in the upper 6 percent of the distribution. What is the lowest score a college graduate must earn to qualify for a responsible position?
Standard deviation of 2.5 inces approximately what percentage of american women are taller than 58.5 inches, but shorter than 68.5?
The politician's advisors estimated the proportion supporting her fiscal policy to be .60. How large of a sample is required?
Which of the following is not an advantage of using a cluster sample instead of other types of samples?
Downtown Fish Company believes that it has a market share of 25%. They survey n = 100 fish owners and ask whether or not Downtown fish is their regular brand of Fish food, of which 23 people say yes.
Perform hypothesis testing on one variable's data (choose either the intrinsic or extrinsic Job Satisfaction)using 25 as our data set number.
For thefts involving more than $1,000, there is an inverse relationship between the value of the goods stolen and the length of the prison sentence given to the thief.
In a random sample of 800 customers selected for a short phone interview, 96 have stated that they have received their shipments late. The company's claim is that the percentage of late shipments is at or below 10%.
Nine percent of undergraduate students carry credit card balances greater than $7,000. Suppose 10 undergraduate students are selected randomly to be interviewed about credit card usage.
A random sample of 25 statistics examinations was taken. The average score in the sample was 76 with a variance of 144. Assuming the scores are normally distributed, the 99% confidence interval for the population average examination score is:
With a confidence of 95%, what is the margin of error for the proportion of all carp that would incorporate the gene into their DNA?
What is the 98% confidence interval for the true proportion of male office workers who work more than 50 hours per week?
The state wanted to see how three different math classes compared, so they gave a standardized test to all the students. Given the following results
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