In a Survey of 550 Randomly-Selected Business Statistic Students Were

question 279

Multiple Choice

In a survey of 550 randomly-selected business statistic students were surveyed on their impressions of their course, instructor, and textbook. The results are as follows:
$\begin{array} { ll l } \text {Rate the overall quality of your course. } \\&\text { Excellent } & 154 \\&\text { Good } & 187 \\&\text { Fair } & 71 \\&\text { Poor } & 138\\ \text { How effective was your instructor?} \\&\text { Very effective } & 75 \\&\text { Somewhat effective } & 220 \\&\text { Somewhat ineffective } & 155 \\&\text { Very ineffective } & 100\\ \text {How easy was it to read and understand the textbook? } \\&\text { Very easy } & 21 \\&\text { Easy } & 83 \\&\text { Hard } & 361 \\&\text { Very hard } & 85\end{array}$

Use the above results to answer the following questions:
Compute a point estimate of the proportion of all college statistic students who:

-Think their instructor was "very effective"

• A)0.136
• B)0.536
• C)0.182
• D)0.280
• E)0.014

---

Definitions:

Fixed Cost

Costs that do not vary with the level of output or business activity, such as rent, salaries, and insurance premiums.

Average Fixed Cost

The fixed costs of production divided by the quantity of output produced, representing how fixed costs dilute as more units are produced.

Variable Costs

Costs that vary directly with the level of production or business activity, such as materials and labor used in the production of goods.

Fixed Costs

Costs that do not vary with the level of output or sales in the short term, such as rent, salaries, or loan payments.