Purchasing agent Angela Rodriguez reported the number of sales calls she received from suppliers on each...

Purchasing agent Angela Rodriguez reported the number of sales calls she received from suppliers on each of the past 14 days. Compute the variance for her daily calls during the 14-day period. Treat the data as a sample.

Calls (x)	Number of days f(x)
4	1
5	3
6	4
7	4
8	2

a. 1.88

b. 1.14

c. 1.67

d. .78

e. 1.31

Expert Solution

Angela Rodriguez reported the number of sales calls she received from suppliers on each of the past 14 days. As per question the data should be treated as sample. So, for the following calculations we will take the divisor as (n-1) and values are taken upto 2 decimal numbers as the answers are in upto 2 decimal numbers

the variance for her daily calls during the 14-day period is 1.67 (option c ) approx

milcah answered 1 year ago

A manufacturer is considering purchasing parts from three different suppliers. The parts received from the suppliers...

A manufacturer is considering purchasing parts from three different suppliers. The parts received from the suppliers are classified as having a minor defect, having a major defect, or being good. Test results from samples of parts received from each of the three suppliers are shown below. Note that any test with these data is no longer a test of proportions for the three supplier populations because the categorical response variable has three outcomes: minor defect, major defect, and good. Supplier...

A company reported the following information: Cash received from customers = $27,300 Cash paid to suppliers...

A company reported the following information: Cash received from customers = $27,300 Cash paid to suppliers = $11,400 Cash paid for other operating expenses = $7,400 Cash paid for income taxes = $3,250 The company’s cash flow from operating activities is closest to? $8,500 $15,900 $5,250

Scenario C: Angela just received her test paper back and she earned an A. She looked...

Scenario C: Angela just received her test paper back and she earned an A. She looked over at her classmate, Lucy, and noticed that Lucy had received a D on her test. 1. According to the Fundamental Attribution Error, how will Angela explain Lucy’s poor performance on her test? The Fundamental Attribution Error is described as “the tendency to overestimate the extent to which other people’s behavior is due to the internal, dispositional factors nand to underestimate the role of...

Spencer, the Purchasing agent of a Chick Industries, received two tickets to the upcoming Alabama versus...

Spencer, the Purchasing agent of a Chick Industries, received two tickets to the upcoming Alabama versus Ohio State football game from a supplier. Spencer often authorizes purchases from this supplier. These football tickets sell for over $500 each. What problems do you see here? What AICPA Codes of Professional Conduct are being broken here? Provide a one paragraph response.

Let X be the random variable representing the number of calls received in an hour by...

Let X be the random variable representing the number of calls received in an hour by a 911 emergency service. A probability distribution of X is given below. Value of X 0 1 2 3 4 Probability P(x) 0.32 ____ ____ 0.16 0.08 (a) Suppose the probability that X = 1 and the probability that X = 2 are the same. What are these probabilities? Incorrect: Your answer is incorrect. (b) What is the probability that at least one call...

A large manufacturing company investigated the service it received from suppliers and discovered that, in the...

A large manufacturing company investigated the service it received from suppliers and discovered that, in the past, 35% of all materials shipments were received late. However, the company recently installed a just-in- time system in which suppliers are linked more closely to the manufacturing process. A random sample of 125 deliveries since the just-in- time system was installed reveals that 25 deliveries were late. Use this sample information to test whether the proportion of late deliveries was reduced significantly. Let...

Let X equal the number of telephone calls per hour that are received by 911 between...

Let X equal the number of telephone calls per hour that are received by 911 between midnight and noon. For a two-day period, researchers recorded the number of calls received in each hour. Those values were: 0, 1, 1, 1, 0, 1, 2, 1, 4, 1, 2, 3, 0, 3, 0, 1, 0, 1, 1, 2, 3, 0, 2, 2. This problem is about deciding if it looks like the Poisson distribution might be an appropriate model for X. (a)...

When Sheryl, the purchasing agent for Cantik Comestics Berhad orders materials, she sends a duplicate copy...

When Sheryl, the purchasing agent for Cantik Comestics Berhad orders materials, she sends a duplicate copy of the purchase order to the receiving department. When materials are received, Horace, the receiving clerk, records the date of receipt on the copy of the purchase order but does not count the goods received. The same copy of the purchase order is sent to accounting, where Lisa uses it to support the purchase entry in the voucher register. The copy is then sent...

Store Location Purchasing Dept. Cost Merchandise Purchased No. of Purchase Orders Number of Suppliers Sheridan $575,000...

Store Location Purchasing Dept. Cost Merchandise Purchased No. of Purchase Orders Number of Suppliers Sheridan $575,000 $47,239,000 1708 61 Denver 1,226,000 102,364,000 2519 95 Salt Lake City 1,710,000 100,162,000 2506 139 Kansas City 881,000 95,760,000 1719 91 Omaha 1,544,000 51,466,000 2883 155 Milwaukee 794,000 50,631,000 647 75 Minnealops 1,341,000 84,753,000 2978 103 Phoenix 794,000 103,464,000 3761 117 Las Vegas 2,216,000 96,162,000 2584 73 Albaqurque 2,030,000 62,364 5497 176 Tucson 1,338,000 65,635,000 4347 130 Houston 856,000 88,524,000 2878 62 Oklahoma 1,122,000...

Bikes assembles bicycles by purchasing frames, wheels, and other parts from various suppliers.

3. CENTENNIAL Bikes assembles bicycles by purchasing frames, wheels, and other parts from various suppliers.Consider the following data:• The company plans to sell 20,000 bicycles during each month of the year's first quarter.• A review of the accounting records disclosed a finished-goods inventory of 1,250 bikes on January 1. The company has just adopted a policy to maintain an ending inventory equal to 7.25% of the following month’s budgeted sales.• CENTENNIAL Bikes has 4,100 wheels in inventory on Jan. 1,...

Question