A Random Sample of 9 TI-89 Titanium Calculators Being Sold $\begin{array} { l l l l l } \hline 151 & 160 & 136 & 132 & 140 \\\hline 151 & 137 & 119 & 145 & \\\hline\end{array}$

question 23

Multiple Choice

A random sample of 9 TI-89 Titanium calculators being sold over the internet had the following prices, in dollars.

$\begin{array} { l l l l l } \hline 151 & 160 & 136 & 132 & 140 \\\hline 151 & 137 & 119 & 145 & \\\hline\end{array}$

Assume the population standard deviation is $\sigma = 34$ and that the population is approximately normal.
Construct a 90% confidence interval for the mean price for all the TI-89's being sold over the
Internet.

• A) (134.6, 147.9)
• B) (122.6, 159.9)
• C) (85.3, 197.2)
• D) (134.2, 148.2)

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Definitions:

Major Changes

Significant adjustments or transformations in strategy, operations, or processes within a business or industry.

Current Strategy

The ongoing plan of action implemented by a company to achieve its business objectives and respond to market conditions.

Financial Objective

A specific, measurable goal related to the financial performance or position of a company, such as revenue growth, cost reduction, or achieving a certain return on investment.

Reduce Overall Sales Costs

A strategic objective aimed at lowering the total expenses associated with the selling of products or services, enhancing profitability.