Australian Electric Bulb manufacturing company
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Free InquiryThe Production Manager of an Australian Electric Bulb manufacturing company collected 6 boxes of Electric Bulbs with some faulty productions in each box. The table below shows the details of those boxes. Consider a sample size of 2 boxes and demonstrate the statement:
“The arithmetic mean of sample mean is an unbiased estimate of population mean”. Show all workings. (7 marks)
Boxes |
Number of faulty bulbs |
A |
4 |
B |
3 |
C |
5 |
D |
2 |
E |
1 |
[Hints: Calculate Population Mean and different sample means. Then show the Mean of sample means = Population mean.]
b) State the Central Limit Theorem.
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