A Random Sample of 9 TI-89 Titanium Calculators Being Sold $\begin{array} { l l l l l } \hline 135 & 163 & 152 & 153 & 138 \\\hline 164 & 160 & 149 & 157 & \\\hline\end{array}$

question 12

Multiple Choice

A random sample of 9 TI-89 Titanium calculators being sold over the internet had the following prices, in dollars.
$\begin{array} { l l l l l } \hline 135 & 163 & 152 & 153 & 138 \\\hline 164 & 160 & 149 & 157 & \\\hline\end{array}$
Assume the population standard deviation is ı = 28 and that the population is approximately normal. Construct a 95% confidence interval for the mean price for all the TI-89's being sold over the internet.

• A) (134.0,170.6)
• B) (145.6,159.1)
• C) (145.5,159.2)
• D) (97.5,207.2)

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A yearly health check-up with a healthcare provider intended to prevent health problems and maintain wellness.

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The tenth revision of the International Classification of Diseases, Clinical Modification, used for coding and classifying morbidity data for diagnostic and insurance purposes.

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