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2 Statistics

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Question 223

A company has 480 day-shift production staff, 320 night-shift production staff, 240 office staff and 160 managers. It requires a proportional stratified sample of 75 employees.

a.

Calculate the four allocations.

[4]
b.

Explain how employees should be selected within each stratum.

[1]
c.

Give one advantage of this design over surveying employees in the canteen at noon.

[1]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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