kon.r.po theory of statistics. 9 version of TSU Ido

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Uploaded: 23.12.2011
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Objective 1
At 1% sample survey of farms (random selection, repetition-free) were obtained the following data:
Number of farm daily milk yield of 1-to Rova, Specific gravity liter concentrated feed-tion%
1 11.4 28
2 11.5 23
3 12.4 22
4 12.5 25
5 12.6 27
6 12.7 18
7 12.8 20
8- 13 18
9 13.1 13
10 13.2 18
11 13.3 17
12 13.4 15
13 13.5 20
14 13.5 25
15 13.5 26
16 13.8 23
17 13.9 22
18 13.9 20
19 14.1 12
20 14.1 23
21 14.4 27
22 14.5 26
23 14.5 28
24 14.6 27
25 15.0 26

A statistical analysis of the data. For this purpose:
I. 1. Build the statistical distribution of a number of farm ho-farms on the daily udoyu 1 cow per year, forming 4 groups with equal intervals. Plot number distribution.
2.Rasschitayte distribution characteristics of a number of farm ho-farms on the daily udoyu 1 cows: average arifmetiches¬kuyu, the average linear deviation, mean square otklo¬nenie, variance, coefficient of variation. In calculating the arithmetic mean and standard deviation primeni¬te method of moments. Draw conclusions.
II. 1. With a probability of 0.954, determine the sampling error medium-daily milking 1 cow and borders, which will be an average milk yield of cows 1 in the general population.
2. With a probability of 0.954, determine the proportion of farm mistake ho-farms, where the daily yield of more than 14 liters of milk, and the border, which will be the proportion in the general Kosovo-kupnosti. Draw conclusions.
III. 1. The method of analysis groups set the nature of the relationship between the proportion of concentrated feed and daily milk yield of cows 1. The results are formalized in the table. Draw conclusions.
2. Measure the closeness of correlation between the specific, concentrated feed weight and daily milk yield from one cow empirical correlations. Explain its meaning.
3. Calculate the parameters of a linear equation of the relationship between specific gravity of concentrated feed and daily milk yield from one cow. Explain ..

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