Six Measurements Were Made of the Magnesium Ion Concentration (In $\begin{array}{llllll}\hline 170 & 201 & 199 & 202 & 173 & 153 \\\hline\end{array}$

question 112

Multiple Choice

Six measurements were made of the magnesium ion concentration (in parts per million, o in a city's municipal water supply, with the following results. It is reasonable to assume th population is approximately normal.
$\begin{array}{llllll}\hline 170 & 201 & 199 & 202 & 173 & 153 \\\hline\end{array}$

Based on a $95 \%$ confidence interval for the mean magnesium ion concentration, is it reasonable to believe that the mean magnesium ion concentration may be greater than 208 ? (Hint: you should first calculate the $95 \%$ confidence interval for the mean magnesium ion concentration.) )

• A) The likelihood cannot be determined.
• B) No
• C) Yes

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Annual Interest Rate

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