1. True or False: In cluster sampling, subjects are pulled from the population in groups.

2. True or False: Sampling Error is only considered to be committed or caused by the researcher.

5. Which variable is described as the outcome variable?

A. Independent variable

B. Constant Variable

C. Dependent variable

D. Extraneous

6. Which of the following variables are continuous? Select all that apply

A. The number of people in the movie theater

B. weight of a package of hamburger meat

C. number of chairs sold in a month

D. the weight of a child

E. The height of a building

7. Which of the following are quantitative data? Select all that apply.

A. Age of your car

B. Color of your hair

C. Name of your pet

D. Length of your commute to campus

E. Height of your car

F. Height of 20 4 year olds

Tombro Industries is in the process of automating one of its plants and developing a flexible manufacturing system. The company is finding it necessary to make many changes in operating procedures. Progress has been slow, particularly in trying to develop new performance measures for the factory.

In an effort to evaluate performance and determine where improvements can be made, management has gathered the following data relating to activities over the last four months:

The president has read in industry journals that throughput time, MCE, and delivery cycle time are important measures of performance, but no one is sure how they are computed. You have been asked to assist the company, and you have gathered the following data relating to these measures:

Required:

1-a. Compute the throughput time for each month.

1-b. Compute the manufacturing cycle efficiency (MCE) for each month.

1-c. Compute the delivery cycle time for each month.

3-a. Refer to the inspection time, process time, and so forth, given for month 4. Assume that in month 5 the inspection time, process time, and so forth, are the same as for month 4, except that the company is able to completely eliminate the queue time during production using Lean Production. Compute the new throughput time and MCE.

3-b. Refer to the inspection time, process time, and so forth, given for month 4. Assume that in month 6 the inspection time, process time, and so forth, are the same as in month 4, except that the company is able to eliminate both the queue time during production and the inspection time using Lean Production. Compute the new throughput time and MCE.

1. Variable, Fixed, and Mixed Costs

   Classify the following costs of activity inputs as variable, fixed, or mixed. Identify the activity and the associated activity driver that allow you to define the cost behavior. For example, assume that the resource input is “cloth in a shirt." The activity would be "sewing shirts," the cost behavior "variable," and the activity driver "units produced." Prepare your answers in the following format:

   	Activity	Cost Behavior	Activity Driver
   a. Flu vaccine	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   b. Salaries, equipment, and materials used for moving materials in a factory	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   c. Forms used to file insurance claims	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   d. Salaries, forms, and postage associated with purchasing	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   e. Printing and postage for advertising circulars	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   f. Equipment, labor, and parts used to repair and maintain production equipment	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   g. Power to operate sewing machines in a clothing factory	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   h. Wooden cabinets enclosing audio speakers	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   i. Advertising	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   j. Sales commissions	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   k. Fuel for a delivery van	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Mileage Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Mileage Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   l. Depreciation on a warehouse	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   m. Depreciation on a forklift used to move partially completed goods	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   n. X-ray film used in the radiology department of a hospital	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold
   o. Rental car provided for a client	Assembling Delivering orders Filing claims Maintaining equipment Moving materials Purchasing goods Selling goods Selling products Sewing Storing goods Transporting clients Vaccinating patients X-raying patients	Variable Fixed Mixed	Machine hours Maintenance hours Miles driven Number of circulars Number of claims Number of flu shots Number of moves Number of orders Number of X-rays Square feet Units produced Units sold

Indicate, from the following, which has the second-highest predicted entropy at 298.15 K.

1.0 mol HCN

0.23g of HCN

0.5 mol HCN

15.0 kg HCN

All of these have the same entropy

Radium-226 (226.025402 amu) decays to Radon-224 with a half life of 1.6x10³ years. What volume of Radon gas (at 25 degrees Celsius and 1.0 atm) is produced by 25.0 grams of Radium in 475.0 days?

A 1.0-L buffer solution contains 0.100 molHC2H3O2 and 0.100 molNaC2H3O2. The value of Ka for HC2H3O2 is 1.8×10−5 Calculate the pH of the solution upon addition of 39.8 mL of 1.00 MHCl to the original buffer.

Evaluate the Design Strength of the following members with the specified unsupported lengths, Lb. Assume Cb = 1.0.

1. What sample size is required to achieve a ME of ±4% at 90% confidence with an estimatedp = 0.3? Show how you arrived at your solution for full credit.

2. If a sample proportion is unknown, what sample size is required to achieve a ME of ±2% at 98% confidence ? Show how you arrived at your solution for full credit.

Shown below are the number of trials and success probability for some Bernoulli trials. Let X denote the total number of successes.

n = 6 and p = 0.3

Determine ​P(x=4​) using the binomial probability formula.

b. Determine ​P(X=4​) using a table of binomial probabilities.

Compare this answer to part​ (a).