Confidence interval for proportion of applicants that fail

Reference no: EM1387486

As a condition of employment, Fashion Industries applicants must pass a drug test. Fashion Industries randomly tests its employees throughout the year. Of the last 225 applicants 28 failed the test.

1) Develop a 90 percent confidence interval for the proportion of applicants that fail the test. (Round your answers to 2 decimal places.)

For the applicants the confidence interval is between and .

2) Would it be reasonable to conclude that more than 11 percent of the applicants are now failing the test?

Reference no: EM1387486

Questions Cloud

Find angular speed while on frictionless side of track : A car of mass = 800 travelling at 45.0 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and the car's tires. What is the radius of the turn if = 20.0 (Assume the car continues in unif..

Illustrate what is the estimate of the standard deviation : Illustrate what is the estimate of the standard deviation of the sampling distribution of sample proportions for whenever this process is under control?

Explain why bni and carol do or do not have a contract : In the letter, BNI stated which Carol had ten days to accept. On May 5, Carol sent BNI a fax which stated, "The price for the audit seems too low. Would you consider paying $12,000? Explain why BNI and Carol do or do not, have a contract.

Explain performance measures for balanced scorecard system : Explain three specific performance measures which could be utilized in Balanced Scorecard system in industry of your choice.

Confidence interval for proportion of applicants that fail : Develop a 90 percent confidence interval for the proportion of applicants that fail the test. (Round your answers to 2 decimal places.)

Show the conservation of mechanical energy : A 150 g ball and a 220 g ball are connected by a 36{rm cm}-long, mass less, rigid rod. The balls rotate about their center of mass at 130 rpm. What is the speed of the 150 g ball.

Explain how much income must michael report due to the use : His ability to stay in the hotel without charge is based on the availability of empty rooms. Explain how much income must Michael report due to the use of the San Francisco hotel room?

Genetics probability questions : Vitamin D resistant rickets is usually an X-linked dominant situation. The disease is caused by mutations the PHEX gene and results in bone deformity and bow leggedness.

Corporatio rid of the variability in its lead-time per order : Suppose the corporation could pay C dollars per year to get rid of the variability in its lead-time per order. Illustrate what is the most it would be willing to pay to do this (and still have a 95% service level)?

User Account

All Pages