The Table Below Shows a Distribution and the Observed Frequencies

question 15

Essay

The table below shows a distribution and the observed frequencies of the values of a variable from a simple random sample of a population. Perform a chi-square goodness-of-fit test, at the specified significance level, to decide whether the distribution of the variable differs from the given distribution. $\begin{array}{l} \begin{array} { l c c c c c } \text { Distribution: } & 0.15 & 0.20 & 0.25 & 0.25 & 0.15 \\ \text { Observed frequencies: } & 12 & 15 & 16 & 18 & 19 \end{array}\\ \text { Significance level } = 0.10 \end{array}$

---

Definitions:

Nuclear Strike

An attack using nuclear weapons, intended to inflict massive destruction on the target.

Technological Revolution

describes a period of rapid technological progress that dramatically changes society, economy, and culture.

American Department of Defense

The federal department charged with coordinating and supervising all agencies and functions of the government relating directly to national security and the United States armed forces.

Mass Media

Various forms of communication technologies that reach a large audience via mass communication, such as newspapers, television, radio, and the internet.