Compare the grouped data mean and standard deviation values to the ungrouped data mean and standard deviation

MN4063QA July21 – Coursework 1

Grouped Descriptive Statistics [14 marks]

It was suggested to the retailer that the 130 transaction values could also be summarised in a grouped table (see

Table 2 below). Three table templates based on Table 2 have been made available in the Excel file named
“MN4063QA July21 CWK 1 Data” under the tab labelled Task 2.

Table 2 – Grouped Descriptive Statistics

Required for Task 2 (Comments for task 2 should not exceed 50 words in total.)

Using the three table templates provided in the Excel data file as a starting point, construct three tables in Excel.

The first table should show the frequencies and percentage frequencies.

The second table should show the ‘less than’ cumulative frequencies and cumulative percentage
frequencies.

Complete the third table to estimate the mean and standard deviation. You need to copy the
Excel output (3 tables) into your Word document.

Compare the grouped data mean and standard deviation values to the ungrouped data mean and standard deviation