Xania Inc. uses a normal job-order costing system. Currently, a plantwide overhead rate based on machine hours is used. Xania's plant manager has heard that departmental overhead rates can offer significantly better cost assignments than a plantwide rate can offer. Xania has the following data for its two departments for the coming year:

Required:

1. Compute a predetermined overhead rate for the plant as a whole based on machine hours.

2. Compute predetermined overhead rates for each department using machine hours for Department A and direct labor hours for Department B. (Note: Carry your calculations out to the nearest dollar.)

3. Job 73 used 25 machine hours from Department A and 50 machine hours from Department B; it used 30 direct labor hours from Department A and 20 direct labor hours from Department B. Job 74 used 40 machine hours from Department A and 15 machine hours from Department B; it used 20 direct labor hours from Department A and 50 direct labor hours from Department B. Compute the overhead cost assigned to each job using the plantwide rate computed in Requirement 1. Repeat the computation using the departmental rates found in

Requirement 2.

4. Using a Plantwide, if actual machine hours for the year were 17,000 hours and actual overhead costs were $1,100,000, how much was overhead under- or over-applied for the year and how would that affect Cost of Goods Sold when it is closed to that account. $$_________________________ over-applied/under-applied (circle one) $$_________________________ Cost of Goods Sold increased/decreased (circle one)

2. Download the BodyTemp.MTW file from Canvas. We will be comparing the body temperatures of men and women.  [30 points]

A.Make a graph to compare the distributions of men and women’s body temperatures.

B. Use Minitab Express to determine if there is evidence that the mean body temperatures of men and women are different.  The coding of gender is 0=man and 1=woman. Assume that the distribution of the body temperature data is normal. Use the five-step hypothesis testing procedure and remember to include all relevant Minitab Express output. You should not need to do any hand calculations.

Step 1:Check assumptions and write hypotheses

Step 2: Calculate the test statistic

Step 3:Identify the pvalue

Step 4:Make a decision

Step 5:State a “real world” conclusion

Question 3)The final grades in Math class of 80 students at State University are recorded in the accompanying table.

A.The given data set is in ascending order. If class interval size is 3 for the constructed 14 classes, find “m”.(Note: This section is not related with section B)

B.Construct a frequency table with 8 classes and find its frequencies.

i)Find median class

ii)Sketch the ogive curves by using either the cumulative frequency or the cumulative relative frequency.

iii)Using the ogive curve find the following probabilities:

P(x<76.5)=

P(x>88.5)=

P(x>84)=

P(x<90)=

P(74<x<92)=

P(x=78)=

iv)Find interquartile range (IQR)

v)Sketch box and whisker plot.

vi)Comment on skewness.

vii)The standard deviation and mean of another math class of 49 students from Technology University is 10.3 and 88.6, respectively. Compare the Math class in State University with Math class in Technology University, which one is more consistent? In other words which Math class has less spread of values around its mean? Show your work and explain why?Note: You can find the necessary parameters for the State University either from raw data given or from the frequency table you constructed.

Use the distribution in the form of the stem-leaf plot.

Stem      Leaves

1                 1478

2              01237888

3                  189          

16/ The mid-point of the third class is

A./   32   B/   36 C/    34.5 D/   35

17/ The median is

A./   24 B/  23 C/ 25   D/ 5

18/ The relative frequency for the third class is:

A./   20%   B/  50% C/    66% D/   40%

19/ The heights of a group of professional basketball players are summarized in the frequency distribution below. Find the mean height from this frequency table.

Height s (in)           Frequency

70-72                            4

73-75                            6

76-78                            8

79-81                            2

A./   75.2 in   B/  76.8 in C/    74.0 in D/   77.5 in

20/ The temperatures ( in ºF ) in a room is recorded at the top of hours are

67, 68, 70 , 5, 77, 77, 78, 80, 78, 79, 74, 74. Choose best answer:

a/  It is a typo

b/  highest temperature is probably 95

c/  5 is not an outlier

d/  5 is an outlier

21/ The variance of 6 washing machines with prices:  $ 800, $784, $ 1,235, $860, $1,036 and $770 is

A/ 196.4 B/   34,295.3 C/ 26,002.7 D/ 185.2

22/ The coefficient of variation ( round to closest %) for the set of data  :

1, 3, 3, 5, 5, 6, 7, 8, 9 ,12, 15, 24  is

A   74% B/ 67% C/ 24% D/ 78 %

23/ Human body temperatures have the mean of 98.2º  and a standard deviation of 0.6º.

Amy’s temperature can be described by z = 0.9. What is her temperature?

A/ 98.2º B/ 97.8º C/   98.7º D/ 99.3º

24/ The upper bound for the outlier for the data set

-11, 14, 22, 22, 22, 23, 31, 31, 42, 44, 44, 75    is

A/  74.5 B/  75 C/ 84 D/   68

25/ The box-plot of a data with 5- point summary   2, 6, 8, 11, 18

A/is positive skewed. B/ is negative skewed.

C/ is symmetric D/ perfect skewed

Martin-Pullin Bicycle Corp. (MPBC), located in Dallas, is a wholesale distributor of bicycles and bicycle parts. Formed in 1981 by cousins Ray Martin and Jim Pullin, the firm’s primary retail outlets are located within a 400 mile radius of the distribution center. These retail outlets receive the order from Martin-Pullin within two days after notifying the distribution center, provided that the stock is available. However, if an order is not fulfilled by the company, no backorder is placed. The retailers arrange to get their shipment from other distributors, and MPBC loses that amount of business.

The company distributes a wide variety of bicycles. The most popular model, and the major source of revenue to the company, is the AirWing. MPBC receives all the models from a single overseas manufacturer, and shipment takes as long as four weeks from the time an order is placed. With the cost of communication, paperwork, and customs clearance included, MPBC estimates that each time an order is placed, it incurs a cost of $65. The purchase price paid by MPBC, per bicycle, is roughly 60% of the suggested retail price for all the bike models available. The inventory carrying cost is 1% per month (12% per year) of the purchase price paid by MPBC. The retail price (paid by the customer) for the AirWing is $170 per bicycle.

MPBC is interested in making an inventory plan for 2011. The firm wants to maintain a 95% service level with its customers to minimize the impact of lost orders. The data collected for the past two years is summarized in the following table. A forecast for AirWing model sales in upcoming year 2011 has been developed and will be used to make an inventory plan for MPBC.

Questions

1. Develop an inventory plan to help MPBC.
2. Discuss ROPs and total costs.
3. How can you address demand that is not at the level of the planning horizon?

Promoting the Financial Planning Cruise to Better Horizons Credit Union Members

Write a sales message to Better Horizons members to promote the financial planning cruise. Feel free to add additional details (i.e., price and dates for the cruise).

Must be Persuasive!!!

Scenario: Christine Russo works at Better Horizons and is developing several new services the credit union could offer. One idea is for credit union members to take a five-day cruise to the Bahamas. Two afternoons of the cruise will be devoted to financial planning workshops, including choices such as retirement planning, trusts and estates, insurance, charitable giving, taxes, and college savings. Also, a finance boot camp for teenagers will provide basic information about savings and checking accounts, loans, and budgeting.

In another initiative, Christine wants to set up a new rewards program for credit union members who use their Better Horizons debit or credit cards. Each purchase with the debit or credit card will contribute to their total reward points, which customers can redeem for brand-name merchandise, hotel accommodations, airline tickets, cruises, and other travel options (detailed in an online and paper merchandise and travel catalog). Members get one point for each dollar spent on their credit cards and one point for every two dollars spent on their debit cards. One advantage of the program is that points can be combined across accounts. So, family members Page 331or friends who are members of the credit union can transfer their points to one another’s accounts and more quickly gain rewards. The program involves no fee, and members with the cards are automatically enrolled in the program.

A campus deli serves 300 customers over its busy lunch period from 11:30 a.m. to 1:30 p.m. A quick count of the number of customers waiting in line and being served by the sandwich makers shows that an average of 10 customers are in process at any point in time. What is the average amount of time that a customer spends in process?

The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 4.8 minutes with a sample standard deviation of 0.5 minutes. Conduct a test to determine whether or not the mean waiting time of all customers is significantly more than 5 minutes. Use a significance level of α = 0.01.

23 Within a given distribution channel, the following information is available concerning trade margins and costs. A wholesaler has a unit selling price of $215 and a unit cost of $140. The retailer requires a 36% markup on selling price. The manufacturer has unit variable costs of $35. Calculate the wholesaler percent markup on cost. Report your answer as a percentage and round to the nearest percent. please show work.

24 Within a given distribution channel, the following information is available concerning trade margins and costs. A wholesaler has a unit selling price of $260 and a unit cost of $130. The retailer requires a 21% markup on selling price. The manufacturer has unit variable costs of $62. Calculate the manufacturer's dollar margin per unit. Round your answer to the nearest dollar. please show work

25 Within a given distribution channel, the following information is available concerning trade margins and costs. A wholesaler has a unit selling price of $894 and a unit cost of $521. The retailer requires a 45% markup on selling price. The manufacturer has unit variable costs of $306. Calculate the manufacturer's percent markup on cost. Report your answer as a percentage and round to the nearest percent.please show work.

26 A manufacturer is considering a switch from manufacturers’ representatives to an internal sales force. The following cost estimates are available. Manufacturers’ reps are paid 8.4% commission and incur $575,000 in fixed costs, while an internal sales force has fixed costs projected at $2,180,000 and would receive 3.3% commission. At what sales volume would the manufacturer be indifferent between the two alternatives? Report your answer in dollars.please show work.

27 A manufacturer is considering a switch from manufacturers’ representatives to an internal sales force. The following cost estimates are available. Manufacturers’ reps are paid 8.7% commission and incur $590,000 in fixed costs, while an internal sales force has fixed costs projected at $1,880,000 and would receive 3.0% commission. Assume that sales revenue is double the breakeven volume or the point at which the manufacturer would be indifference between reps and an internal sales force. At this volume, how much would the manufacturer save, assuming the company had switched to an internal sales force? Report your answer in dollars. please show work.