Answer:
The sample proportion represents a statistically significant difference from 50%
Explanation:
The sample proportion is the same as 50%
Alternate hypothesis: The sample proportion is not the same as 50%
z = (p' - p) ÷ sqrt[p(1 - p) ÷ n]
p' is sample proportion = 289/400 = 0.7225
p is population proportion = 50% = 0.5
n is number of students sampled = 400
z = (0.7225 - 0.5) ÷ sqrt[0.5(1 - 0.5) ÷ 400] = 0.2225 ÷ 0.025 = 8.9
The test is a two-tailed test. Using a 0.01 significance level, critical value is 2.576. The region of no rejection of the null hypothesis is -2.576 and 2.576.
Answer:
Selenium atoms have 34 electrons and the shell structure is 2.8. 18.6. The ground state electron configuration of ground state gaseous neutral selenium is [Ar].
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Answer:
La contextualización nos habla de una simple relación entre si de algo o alguien, el cual se complementa, es decir que el principal aporte de las culturas es la construcción de una sociedad inter-cultural radica en aportar un conjunto de ideas, tradiciones y expresiones propias de cada idiosincrasia en un mundo multi-cultural, lo que enriquece el patrimonio cultural de la humanidad, y de cada país.