Suppose That a Random Sample of 60 Observations Was Drawn

question 64

Essay

Suppose that a random sample of 60 observations was drawn from a population. After calculating the mean and standard deviation, each observation was standardized and the number of observations in each of the intervals below was counted. Can we infer at the 10% significance level that the data were drawn from a normal population?
$$\begin{array} { | l | c | } \hline \text { Intervals } & \text { Frequency } \\\hline Z \leq - 1 & \mathbf { 8 } \\- 1 < Z \leq 0 & 30 \\0 < Z \leq 1 & 17 \\Z > 1 & 5 \\\hline\end{array}$$

Understand the developmental processes and timelines related to puberty and adolescence.

Grasp the concept and examples of primary and secondary sex characteristics.

Comprehend the role of brain maturation in adolescence and its implications on behavior and cognitive functions.

Recognize the influence of social and environmental factors on the timing and progression of puberty.

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