OTS, TYUMGSKHA, in-8

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Uploaded: 13.07.2016
Content: ОТС, ТюмГСХА, в-8.doc (111 kB)
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Description

Task 8.1.
The portfolio consists of shares of three companies. Their profitability is equal respectively 15, 18, 20%, and a share in a portfolio – 20, 50, 30%. What average yield of a portfolio in comparison with existing?

Task 8.2.
Table 1
The salts this to calculation of average price
Types Basis year Accounting year
Quantity, tons
(q0) the Price for ton, rub (p0) Quantity, tons
(q1) the Price for ton, rub (p1)
Food 10 1000 15 1100
Technical 20 880 30 850
Stock-raising 15 1150 20 1200

To determine an index of average price of salt and influence of the change in price of each type for it and structure of their sales.

Task 8.3.
Table 2
Data on production and prices on plant
Products type Production in 1 quarter, thousand rubles.
Increase or reduction of release in the 2nd quarter in comparison with the 1st, %
Rails 223000 +3,0
Cast iron 15800 - 2,0
Iron 10500 +1,5

To determine, on how many percent production on the entity has increased.

Task 8.4.
According to selective inspection of 10000 passengers of the suburban message average range of a trip of the passenger has made 35,5 km, and an average quadratic deviation of +6 km.
To determine:
1) limits of average range of a trip of passengers with probability 0,95;
2) how the limiting error of selection will change if the probability is accepted equal 0,997?

Task 8.5.
Total costs on production have increased in the 2nd quarter in comparison with 1 quarter by 3,8%, the amount of products of the entity has decreased by 2%.
To determine, on how many percent product cost has changed on average.

Additional information

Task 8.1.
The portfolio consists of shares of three companies. Their profitability is equal respectively 15, 18, 20%, and a share in a portfolio – 20, 50, 30%. What average yield of a portfolio in comparison with existing?

Task 8.2.
Table 1
The salts this to calculation of average price
Types Basis year Accounting year
Quantity, tons
(q0) the Price for ton, rub (p0) Quantity, tons
(q1) the Price for ton, rub (p1)
Food 10 1000 15 1100
Technical 20 880 30 850
Stock-raising 15 1150 20 1200

To determine an index of average price of salt and influence of the change in price of each type for it and structure of their sales.

Task 8.3.
Table 2
Data on production and prices on plant
Products type Production in 1 quarter, thousand rubles.
Increase or reduction of release in the 2nd quarter in comparison with the 1st, %
Rails 223000 +3,0
Cast iron 15800 - 2,0
Iron 10500 +1,5

To determine, on how many percent production on the entity has increased.

Task 8.4.
According to selective inspection of 10000 passengers of the suburban message average range of a trip of the passenger has made 35,5 km, and an average quadratic deviation of +6 km.
To determine:
1) limits of average range of a trip of passengers with probability 0,95;
2) how the limiting error of selection will change if the probability is accepted equal 0,997?

Task 8.5.
Total costs on production have increased in the 2nd quarter in comparison with 1 quarter by 3,8%, the amount of products of the entity has decreased by 2%.
To determine, on how many percent product cost has changed on average.

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