Question

In: Operations Management

Three recent college graduates have formed a partnership and have opened an advertising firm. Their first...

Three recent college graduates have formed a partnership and have opened an advertising firm. Their first project consists of activities listed in the following table. Use Table B.

TIME IN DAYS
Activity Immediate
Predecessor
Optimistic Most Likely Pessimistic
A 5 6 7
B 8 8 11
C A 6 8 11
D 9 12 15
E C 5 6 9
F D 5 6 7
G F 2 3 7
H B 4 4 5
I H 5 7 8
End E, G, I


b.
What is the probability that the project can be completed in 24 days or less? In 21 days or less? (Round your te and z values to 2 decimal places and "Standard deviation" to 3 decimal places. Round your final answers to 4 decimal places.)

Days Probability
24 days or less 0.9685
21 days or less


c.
Suppose it is now the end of the seventh day and that activities A and B have been completed while activity D is 50 percent completed. Time estimates for the completion of activity D are 5, 6, and 7. Activities C and H are ready to begin. Determine the probability of finishing the project by day 24 and the probability of finishing by day 21. (Round your intermediate calculations to 3 decimal places and final answers to 4 decimal places.)

Probability
Day 24
Day 21 0.0179

Solutions

Expert Solution

Solution :

Part B :

Part C :


Related Solutions

Suppose 38% of recent college graduates plan on pursuing a graduate degree. Twenty recent college graduates...
Suppose 38% of recent college graduates plan on pursuing a graduate degree. Twenty recent college graduates are randomly selected. a. What is the probability that no more than four of the college graduates plan to pursue a graduate degree? (Do not round intermediate calculations. Round your final answers to 4 decimal places.) b. What is the probability that exactly five of the college graduates plan to pursue a graduate degree? (Do not round intermediate calculations. Round your final answers to...
A recent article reported that a job awaits only one in three new college graduates. The...
A recent article reported that a job awaits only one in three new college graduates. The major reasons given were an overabundance of college graduates and a weak economy. A survey of 200 recent graduates from your school revealed that 80 students had jobs. At the .01 significance level, can we conclude that a different proportion of students at your school have jobs? Use critical value approach.
A recent report claims that non-college graduates get married at an earlier age than college graduates....
A recent report claims that non-college graduates get married at an earlier age than college graduates. To support the claim, random samples of size 100 were selected from each group, and the mean age at the time of marriage was recorded. The mean and standard deviation of the non-college graduates were 22.5 years and 1.4 years respectively, while the mean and standard deviation of college graduates were 23 years and 1.8 years respectively. Test the hypothesis (the claim being made)...
A CPA firm requires recent college graduates to joining its audit practice to sign an employment...
A CPA firm requires recent college graduates to joining its audit practice to sign an employment contract that specifically prohibits them from accepting “future employment at any time with any audit client for which they participated as a member of the audit engagement team.” Assume that such an agreement is enforceable. What are the pros and cons of such a contract term?
The following lists two variables taken from a survey of recent college graduates: Cumulative First year’s...
The following lists two variables taken from a survey of recent college graduates: Cumulative First year’s salary College GPA (in 1,000’s) Joe 3.1 28 Suzy 2.5 22 Catherine 3.6 29 Simon 2.8 25 Jethro 2.7 27 Shannon 3.3 30 Vonda 3.4 32 Zane 3.5 28 Use the data to answer the following: a. Draw a scatter diagram depicting the relationship between these two variables. Interpret. b. Calculate the coefficient of correlation. Interpret. c. Calculate the coefficient of determination. Interpret. d....
A recent study of debt among college graduates reported that the average debt accumulated by graduates...
A recent study of debt among college graduates reported that the average debt accumulated by graduates of private colleges was ​$37,400​, with a sample standard deviation of ​$2,068​, while the average debt accumulated by graduates of public colleges was ​$11,800​, with a sample standard deviation of ​$2,101. The sample sizes were 70 and 180​, respectively. Complete parts a and b below. A. what is the test statistic? Use a significance level of 0.10 B. what is the p value
A recent study of debt among college graduates reported that the average debt accumulated by graduates...
A recent study of debt among college graduates reported that the average debt accumulated by graduates of private colleges was ​$38,100 with a sample standard deviation of $2,042 while the average debt accumulated by graduates of public colleges was ​$11,800 with a sample standard deviation of $2,110 The sample sizes were 60and 190​, respectively. Complete parts a and b below. a. Examine the sample standard deviations. What do these suggest is the relationship between the two population standard​ deviations? Support...
Suppose 44% of recent college graduates plan on pursuing a graduate degree. Twenty six recent college...
Suppose 44% of recent college graduates plan on pursuing a graduate degree. Twenty six recent college graduates are randomly selected. a. What is the probability that no more than seven of the college graduates plan to pursue a graduate degree? (Do not round intermediate calculations. Round your final answers to 4 decimal places.) b. What is the probability that exactly thirteen of the college graduates plan to pursue a graduate degree? (Do not round intermediate calculations. Round your final answers...
A university surveyed recent graduates of the English department for their starting salaries. Three hundred graduates...
A university surveyed recent graduates of the English department for their starting salaries. Three hundred graduates returned the survey. The average salary was $25,000. The sample standard deviation was $1,500. What is the 95% confidence interval for the mean salary of all graduates from the English department?
You have data on three variables for college graduates: years of work experience, student GPA and...
You have data on three variables for college graduates: years of work experience, student GPA and monthly salary after graduation in $. You collect data from 6 students. Student Years of Work Experience GPA Monthly Salary ($) 1 3 2.6 3300 2 0 3.4 3600 3 4 3.6 4000 4 1 3.2 3500 5 2 3.5 3900 6 5 2.9 3600 Following are the regression results for the data using Excel. In this problem, you will be interpreting the regression...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT