A Recent Study Compared the Time Spent Together by Single

question 12

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 60 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 12 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 = 2.77, single-earner couples spend more time watching TV together.
• B) Reject if t > 2.508, t = 1.96, insufficient evidence to say that single-earner couples spend more time watching TV together.
• C) Reject if t > 2.797, t = 2.57, single-earner couples spend more time watching TV together.
• D) Reject if t > 2.508, t = 1.69, insufficient evidence to say that single-earner couples spend more time watching TV together.
• E) Reject if t > 2.508, t = 0.96, insufficient evidence to say that single-earner couples spend more time watching TV together.

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Definitions:

Married

A legally and socially sanctioned union between two individuals that establishes rights and obligations between them and their children.

Financial Protections

Measures and policies implemented to safeguard individuals' assets and investments from fraud, theft, or other financial risks.

Cohabitating Couple

A couple living together in a long-term relationship without being married.

Married Couple

Two individuals legally united in marriage, sharing emotional, financial, and social bonds and responsibilities.