Explain the difference between a stratified sample and a cluster sample. (Select all that apply.)

1) In a stratified sample, the clusters to be included are selected at random and then all members of each selected cluster are included.

2) In a stratified sample, random samples from each strata are included.

3) In a cluster sample, the only samples possible are those including every kth item from the random starting position.

4) In a cluster sample, the clusters to be included are selected at random and then all members of each selected cluster are included.

5) In a cluster sample, random samples from each strata are included.

6) In a stratified sample, every sample of size n has an equal chance of being included.

7) In a stratified sample, the only samples possible are those including every kth item from the random starting position.

8) In a cluster sample, every sample of size n has an equal chance of being included.

Question

Explain the difference between a stratified sample and a cluster sample. (Select all that apply.)
 
1) In a stratified sample, the clusters to be included are selected at random and then all members of each selected cluster are included.
 
2) In a stratified sample, random samples from each strata are included.
 
3) In a cluster sample, the only samples possible are those including every kth item from the random starting position.
 
4) In a cluster sample, the clusters to be included are selected at random and then all members of each selected cluster are included.
 
5) In a cluster sample, random samples from each strata are included.
 
6) In a stratified sample, every sample of size n has an equal chance of being included.
 
7) In a stratified sample, the only samples possible are those including every kth item from the random starting position.
 
8) In a cluster sample, every sample of size n has an equal chance of being included.

Step	Instructions	Points Possible
1	Start Excel. Open the downloaded Excel file named exploring_e05_grader_a1_Expenses.xlsx. Save the workbook as exploring_e05_grader_a1_Expenses_LastFirst, replacing LastFirst with your own name.	0.000
2	On the Subtotals worksheet, sort the data by Employee and further sort by Category, both in alphabetical order.	4.000
3	Use the Subtotals feature to insert subtotal rows by Employee to calculate the total expense by employee.	5.000
4	Collapse the Donaldson and Hart sections to show only their totals. Leave the other employees’ individual rows displayed.	5.000
5	Use the Expenses worksheet to create a blank PivotTable on a new worksheet named Summary. Name the PivotTable Categories.	8.000
6	Use the Category and Expense fields, enabling Excel to determine where the fields go in the PivotTable.	5.000
7	Modify the Values field to determine the average expense by category. Change the custom name to Average Expense.	4.000
8	Format the Values field with Accounting number type.	3.000
9	Type Category in cell A3 and change the Grand Totals layout option to On for Rows Only.	5.000
10	Apply Pivot Style Dark 2 and display banded rows. Note, depending upon the version of Office being used, the style name may be Light Blue, Pivot Style Dark 2.	5.000
11	Insert a slicer for the Employee field, change the slicer height to 2 inches and apply the Slicer Style Dark 5. Move the slicer below the PivotTable. Note, depending upon the version of Office being used, the style name may be Light Blue, Slicer Style Dark 5.	5.000
12	Use the Expenses worksheet to create another blank PivotTable on a sheet named Totals. Add the Employee to the Rows and add the Expense field to the Values area. Sort the PivotTable from largest to smallest expense.	10.000
13	Change the name for the Expenses column to Totals and format the field with Accounting number format.	4.000
14	Insert a calculated field to subtract 2659.72 from the Expense field. Format the field with the custom name Above or Below Average and apply Accounting number format to the field.	10.000
15	Set 12.25 width for column B and column C, change the row height of row 3 to 30, and apply word wrap to cell C3.	4.000
16	Create a clustered column PivotChart from the PivotTable. Move the PivotChart to a new sheet named Chart. Hide all field buttons in the PivotChart, if necessary. Note, Mac users, select the range A3:C8 in the PivotTable. On the Insert tab, click Recommended Charts, and then click Clustered Column to make the chart.	10.000
17	Add a chart title above the chart and type Expenses by Employee. Change the chart style to Style 14.	6.000
18	Apply 11 pt font size to the value axis and display vertical axis as Accounting with zero decimal places.	4.000
19	Create a footer on all worksheets with your name in the left section, the sheet name code in the center section, and the file name code in the right section.	3.000
20	Ensure that the worksheets are correctly named and placed in the following order in the workbook: Subtotals, Summary, Chart, Totals, Expenses. Save the workbook. Close the workbook and then exit Excel. Submit the workbook as directed.	0.000
	Total Points	100.000

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