2 years ago

P= {2x :1 ≤ x ≤ 5} and

Social Studies

1 answer:

vovangra [49]2 years ago

5 0

Hi Uhm Wish Could help but my numeral numbers are not working meaning my keyboard for numbers not WORKING

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The study of how the social environment affects an individual's behavior and personality.

Alona [7]

So, the core of the study is the behaviour and personality - and this is usually studied by psychology. Therefore we can guess that we are looking for a branch of psychology.

This branch is social psychology - it focuses how the society (social environment) influences this behaviour.

8 0

2 years ago

A survey asked 26 adults how many years of education they had. The sample mean was 13.03 with a standard deviation of 3.22. It i

yulyashka [42]

Answer: (11.95, 14.11)

Explanation:

Let x be a random variable that represent the number of years of education.

Given: Sample size : n= 26

Sample mean : $\overline{x}=13.03$

Sample standard deviation : s = 3.22

Significance level : $\alpha=100\%-90\%=10\%=0.1$

Degree of freedom: df = n-1 = 25

Critical t-value for $\alpha=0.1$ and df = 25 will be

$t_{\alpha/2, df}=t_{0.05,25}=1.7081$

90% confidence interval for mean:

$\overline{x}\pm t_{\alpha/2,df}\dfrac{s}{\sqrt{n}}\\\\=13.03\pm (1.7081)\dfrac{3.22}{\sqrt{26}}\\\\=13.03\pm (1.7081)\dfrac{3.22}{5.09902}\\\\=13.03\pm 1.08\\\\=(13.03-1.08,\ 13.03+1.08)\\\\ =(11.95,\ 14.11)$