A Recent Study Compared the Time Spent Together by Single

question 57

Multiple Choice

A recent study compared the time spent together by single and dual-earner couples. According to
The records kept during the study, the mean amount of time spent together watching TV among
Single-earner couples was 65 minutes per day, with a standard deviation of 15.5 minutes. For the
Dual-earner couples, the mean time was 48.4 and the standard deviation was 18.1. At a 0.01
Significance level, can we conclude that the single-earner couples on average spend more time
Watching TV together? There were 15 single-earner and 12 dual-earner couples studied. State the
Decision rule, the value of the test statistic, and your decision.

• A) Reject if t > 2.485, t = 2.01, single-earner couples spend more time watching TV together.
• B) Reject if t > 2.473, t = 1.95, insufficient evidence to say that single-earner couples spend more time watching TV together.
• C) Reject if t > 2.473, t = 2.57, single-earner couples spend more time watching TV together.
• D) Reject if t > 2.485, t = 2.57, insufficient evidence to say that single-earner couples spend more time watching TV together.
• E) Reject if t > 2.485, t = 2.52, single-earner couples spend more time watching TV together.

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Definitions:

Adjacent Desk

A desk or workspace that is directly next to another, usually in an office or classroom setting, facilitating close proximity interaction.

Phone Call

A telecommunications mechanism that allows two or more users to converse when they are too far apart to be heard directly.

Situational Cues

Environmental or contextual factors that guide people's behavior or perceptions in specific situations.

Exam Cheating

The act of using unauthorized means or methods to achieve higher grades or scores in educational assessments.