Use the Frequency Distribution to Find the Mean and the Sample

question 188

Multiple Choice

Use the frequency distribution to find the mean and the sample standard deviation. Does the data form a normal distribution? Remember: if the data fall within 2% of the empirical rule of 68%, 95%, and 99.7% for one, two, or three standard deviations, respectively, they form a normal distribution.   $\begin{array}{|ll|}\hline \text { Life of bulb (hours) } & \text { Frequency t} \\\hline 0-999 . 5 & 103 \\999.5-1,999.5 & 476 \\1,999.5-2,999.5 & 2,062 \\2,999.5-3,999.5 & 4,129 \\3,999.5-4,999.5 & 2,460 \\4,999.5-5,999.5 & 421 \\5,999.5-6,999.5 & 146 \\\hline\end{array}$

• A) The mean is 3,546 hours. The sample standard deviation is 1,018 hours. The data forms a normal distribution.
• B) The mean is 3,523 hours. The sample standard deviation is 1,017 hours. The data forms a normal distribution.
• C) The mean is 3,546 hours. The sample standard deviation is 1,018 hours. The data doesn't form a normal distribution.
• D) The mean is 3,542 hours. The sample standard deviation is 1,027 hours. The data forms a normal distribution.
• E) The mean is 3,523 hours. The sample standard deviation is 1,017 hours. The data doesn't form a normal distribution.

Analyze the consequences of fiscal policy decisions on economic indicators like GDP, unemployment, and inflation.

Assess the role of government purchases and taxation in modifying aggregate demand.

Understand the implications of temporary and permanent changes in income and taxes on consumption decisions.

Discuss the factors contributing to federal budget surpluses or deficits and their implications for fiscal policy.

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Definitions:

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Linguistic capital refers to the advantages and potential for power and influence that accrue to individuals through proficiency in valued languages or dialects.