A)220
B)250
C)210
D)200
E)150

question 93

Multiple Choice

$$\begin{array} { l | r r r r } \mathrm { x } & 100 & 200 & 300 & 400 \\\hline \mathrm { P } ( \mathrm { X } = \mathrm { x } ) & 0.3 & 0.4 & 0.2 & 0.1\end{array}$$

• A)220
• B)250
• C)210
• D)200
• E)150

Understand the concept of simple random sampling and its importance in statistical inference.

Calculate the standard error for sample proportions.

Determine minimum required sample sizes to meet specified margin of error criteria.

Perform hypothesis testing on population proportions.

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