Question: 7.1Given a normal distribution withm=100 ands =10, if you select a sample ofn=25, what is the probability thatXis: A.less than 95? B.between 95 and 97.5?

7.1Given a normal distribution withm=100 ands =10, if you select a sample ofn=25, what is the probability thatXis: A.less than 95? B.between 95 and 97.5? C.above 102.2? D.There is a 65% chance thatXis above what value? 7.16According toGMI Ratings' 2013 Women on Boards Report, the percentage of women on U.S. boards has increased marginally in 2009-2012 and now stands at 14%, well below the values for Nordic countries and France. A number of initiatives are underway in an effort to increase the representation. For example, a network of investors, corporate leaders, and other advocates, known as the 30% coalition, is seeking to raise the proportion of female directors to that number (30%) by 2015. This study also reports that 15% of U.S. companies have three or more female board directors. (Data extracted frombit.ly/13oSFem.) If you select a random sample of 200 U.S. companies, a. What is the probability that the sample will have between 12% and 18% U.S. companies that have three or more female board directors? b. The probability is 90% that the sample percentage of U.S. companies having three or more female board directors will be contained within what symmetrical limits of the population percentage? c. The probability is 95% that the sample percentage of U.S. companies having three or more female board directors will be contained within what symmetrical limits of the population percentage

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!