The following information relate to the prices (in Rs) of a product in two cities A and
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Question:
The following information relate to the prices (in Rs) of a product in two cities A and B.
City A City B
Mean price 22 17
Standard deviation 5 6
The observations related to prices are made for 9 months in city A and for 11 months in city
B. Test at 0.01 level whether there is any significant difference between prices in two cities,
assuming (a)
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