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Using the following data, construct Fisher’s Ideal Index Number and Show that it satisfies Factor Reversal Test and Time Reversal Test? Commodities Price Quantity Base Year - Business Mathematics and Statistics

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प्रश्न

Using the following data, construct Fisher’s Ideal Index Number and Show that it satisfies Factor Reversal Test and Time Reversal Test?

Commodities Price Quantity
Base Year Current Year Base Year Current Year
Wheat 6 10 50 56
Ghee 2 2 100 120
Firewood 4 6 60 60
Sugar 10 12 30 24
Cloth 8 12 40 36
तक्ता
बेरीज

उत्तर

Commodities Base Year Current Year p0q0 p0q1 p1q0 p1q1
Price
(p0)
Quantity
(q0)
Price
(p1)
Quantity
(q1)
Wheat 6 10 50 56 300 336 500 560
Ghee 2 2 100 120 200 240 200 240
Firewood 4 6 60 60 240 240 360 360
Sugar 10 12 30 24 300 240 360 288
Cloth 8 12 40 36 320 288 480 432
Total 1360 1344 1900 1880

Fisher's ideal index number = `sqrt((sum"p"_1"q"_0)/(sum"p"_0"q"_0) xx (sum"p"_1"q"_1)/(sum"p"_0"q"_1)) xx 100`

`"P"_01^"F" = sqrt((1900 xx 1880)/(1360 xx 1344)) xx 100`

= `sqrt((3,572,000)/(1,827,840)) xx 100`

= `sqrt(1.9542) xx 100`

Factor reversal test

Test is satisfied when `"P"_01 xx "Q"_01 = (sum"p"_1"q"_1)/(sum"p"_0"q"_0)`

`"Q"_01 = sqrt((sum"p"_0"q"_1 xx sum"p"_1"q"_1)/(sum"p"_0"q"_0 xx sum"p"_1"q"_0))`

= `sqrt((1344 xx 1880)/(1360 xx 1900))`

`"P"_01 xx "Q"_01 = sqrt((1900 xx 1880)/(1360 xx 1344) xx (1344 xx 1880)/(1360 xx 1900)`

= `sqrt((1880 xx 1880)/(1360 xx 1360))`

= `1880/1360`

= `(sum"p"_1"q"_1)/(sum"p"_0"q"_0)`

Hence Fisher’s Ideal Index satisfies Factor reversal test.

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पाठ 9: Applied Statistics - Miscellaneous problems [पृष्ठ २३२]

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सामाचीर कलवी Business Mathematics and Statistics [English] Class 12 TN Board
पाठ 9 Applied Statistics
Miscellaneous problems | Q 5 | पृष्ठ २३२
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