histogram

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MBA.xls

Template - Statistics

NEWS customers require a delivery time of 30 days at their door from the date that the order was received.
NEWS has provided data of their last 50 shipments: Duration = Delivery Date at the Door - Date Order was Received
Question 1: Using the data given below, complete Task 1 and provide a very brief, general description of whether or not you believe
NEWS is effectively satisfying their customer's desired shipment date.
ANSWER:
Question 2: Using the data given below, complete Task 2 and provide a brief statistical description of how the results
relate to the customer's requirements.
NOTE: A statistically significant answer to the question requires a hypothesis test using inferential statistics, which is not required.
ANSWER:
Order Duration (Calendar Days)
1 11
2 30 Task 1: Create a Histogram
3 19 Step 1: Select DATA from the tool bar above and then the DATA ANAYSIS TOOL icon on the far right.
4 35 Step 2: Select HISTOGRAM, and in the Input Range, highlight the column of DURATION (Calendar Days).
5 13 Step 3: Leave the Bin Blank (Excel will determine this for you). In "New Worksheet Ply" type "Histogram Bins"
6 39 Step 4: Excel creates a new Worksheet named Histogram Bins with a count of each data point per Bin.
7 4 Step 5: In the Histogram Bin worksheet, highlight the data and then select the Quick Analysis icon.
8 23 Step 6: Select Charts. Select Clustered Vertical Bars and then repeat and select Lines.
9 34 Step 7: The first provides a Histogram; the second provides a Frequency Plot.
10 37 Place the Histogram and Frequency Plot side by side below this row
11 6
12 24
13 9
14 26
15 35
16 25
17 5
18 18
19 14
20 29
21 20
22 25
23 21
24 24
25 22
26 13
27 14
28 28
29 26
30 34
31 18
32 40
33 15
34 18
35 29
36 26
37 23 Task 2: Descriptive Statistics
38 36 Step 1: Select DATA from the tool bar above and then the DATA ANAYSIS TOOL icon on the far right.
39 42 Step 2: Select DESCRIPTIVE STATISTICS, and in the Input Range, highlight the column of DURATION (Calendar Days), Grouped by Columns.
40 33 Step 3: In "New Worksheet Ply" type Descriptive Statistics and Excel creates a new Worksheet containing the calculations.
41 15 Step 4: Check the box SUMMARY STATISTICS. Open the new worksheet and observe: Mean, Median, and Standard Deviation.
42 22
43 39 MEAN =
44 22
45 21 MEDIAN =
46 14
47 16 STD DEV =
48 44
49 18
50 22