TABLE 12-9 It Is Believed That, the Average Numbers of Hours Spent

question 80

Multiple Choice

TABLE 12-9
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 Microsoft 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 * 10-0.5 and 5.944E-18 = 5.944 * 10-18.
-Referring to Table 12-9, 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:

Screening Telephone Calls

The process of evaluating incoming calls strategically to manage time effectively, often to filter out unwanted or less important calls.

Priorities

Items or activities that are regarded as more important than others and therefore necessitate attention or action first.

Participatory Planning

Includes the people who will be affected by plans and/or whose help is needed to implement them.

Increase Commitment

The process of enhancing dedication and loyalty towards a task, organization, or relationship, aiming for improved engagement and outcomes.