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Among 150 IRS employees in a large city, only 30 are women. If 10 of the applicants are chosen at random to provide free: fax assistance for the residents of this city, use the binomial approximation to the hyper geometric to find the probability that at least 3 women arc selected.
Discuss the concept of statistical significance, including your understanding of what it means, why it is important, and how it can be used.
Suppose that 20% of all Internet users have posted photos online. A sample survey interviews 1555 users. What is the probability that 300 or fewer people in the sample have posted photos online?
They both want to know what family member typically does the research about possible honeymoon destinations, and who primarily makes the decision on selecting the destination.
Merrill Lynch Securities and Health Care Retirement, Inc., are two large employers in downtown Toledo, Ohio. They are considering jointly offering child care for their employees.
Basically trying to figure out once you get the test statistics how you determine critical value through the Table chart. Trying to find critical value for test statistics of 2.36 with 10 subjects, 7 had higher scores, 2 had lower scores, and 1 sco..
Analyst computes production cost per unit in each order and averages these to get $50.
There are three nursing positions to be filled at Lilly Hospital. Position one is the day nursing supervisor; position two is the night nursing supervisor; and position three is the nursing coordinator position.
If a random sample of 10 people found that 9 were pro-life (i.e., 90%), while another random sample of 1,000 people from the same population found that 550 were pro-life (i.e., 55%), which would you find more significant?
If they find a significant increase in the proportion of items that must be rejected, they will halt the assembly process until the problem can be identified and repaired.
State a question that can be answered in a "binomial" manner, such as Do you normally read the front page of a newspaper at least 4 times a week?
Use the sample results with a 0.05 significance level to test the claim that pulse rates of men have a standard deviation greater than 10 beats per minute.
The retail price of 12-pack soda can be characterized as having a normal distribution with a mean of 3.00 dollars and a standard deviation of 0.25. Below what price do you find 30 percent of all 12-packs?
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