TABLE 13-9 It Is Believed That, the Average Numbers of Hours Spent

question 83

Multiple Choice

TABLE 13-9
It is believed that, the average numbers of hours spent studying per day (HOURS) during undergraduate education should have a positive linear relationship with the starting salary (SALARY, measured in thousands of dollars per month) after graduation. Given below is the Excel output for predicting starting salary (Y) using number of hours spent studying per day (X) for a sample of 51 students. NOTE: Only partial output is shown.

Note: 2.051E - 05 = 2.051*10⁻⁰⁵ and 5.944E - 18 = 5.944*10⁻¹⁸.
-Referring to Table 13-9, the 90% confidence interval for the average change in SALARY (in thousands of dollars) as a result of spending an extra hour per day studying is

• A) wider than [-2.70159, -1.08654].
• B) narrower than [-2.70159, -1.08654].
• C) wider than [0.8321927, 1.12697].
• D) narrower than [0.8321927, 1.12697].

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Definitions:

Reaction

A process in which chemical substances are transformed into other substances through the breaking and forming of bonds.

Organic Product

A compound or material derived from living organisms or produced by synthesis to mimic a natural process.

Reaction

A process in which chemical substances convert into new substances through the breaking and forming of chemical bonds.

Regio-

Regio- refers to a prefix in chemistry denoting the specific region or position in a molecule where a reaction or change occurs, often used in the context of regioselective reactions.