Using Table A-1. In Exercises 15–20, assume that a procedure yields a binomial distribution with a trial repeated n times. Use Table A-1 to find the probability of x successes given the probability p of success on a given trial.
17. n = 15, x = 11, p = 0.99
ANSWER: 0+
What binomial probability formula should you use? Include step-by-step using the formula to show your work.
43. Identifying Gender Discrimination After being rejected for employment, Jennifer Summer learns that the Kingston Technology Corporation has hired only 3 women among the last 24 new employees. She also learns that the pool of applicants is very large, with an approximately equal number of qualified men and women. Help her address the charge of gender discrimination by finding the probability of getting 3 or fewer women when 24 people are hired, assuming that there is no discrimination based on gender. Does the resulting probability really support such a charge?
ANSWER: 0.000139. The very low probability value suggests that the low number of hired women is not the result of chance. The low probability value does appear to support the charge of discrimination based on gender.