Researchers Assessed the Effectiveness of Courses on Logic and Computer

question 44

Multiple Choice

Researchers assessed the effectiveness of courses on logic and computer thinking for adult residents of the city. 10 adults were tested on the topic of logic and computer thinking before and after the courses, their knowledge was evaluated on a scale of 0 to 20. The resulting data are given in the accompanying table. Assume that the sample of 10 adults is representative of adult residents of the city. ​ Construct and interpret a 90% confidence interval estimate for the difference in the mean score before and after courses on logic and computer thinking.

• A)The confidence interval is . You can be 90% confident that the actual difference in the mean score before and after courses on logic and computer thinking for adult residents of the city is between -3.784 and -0.216.
• B)The confidence interval is . You can be 90% confident that the actual difference in the mean score before and after courses on logic and computer thinking for adult residents of the city is between -3.446 and -0.554.
• C)The confidence interval is . You can be 90% confident that the actual difference in the mean score before and after courses on logic and computer thinking for adult residents of the city is between -4.564 and 0.564.
• D)The confidence interval is . You can be 90% confident that the actual difference in the mean score before and after courses on logic and computer thinking for adult residents of the city is between -6.573 and 2.573.
• E)The confidence interval is . You can be 90% confident that the actual difference in the mean score before and after courses on logic and computer thinking for adult residents of the city is between -1.446 and 1.446.

Acknowledge the importance of top management involvement in health and safety policies.

Identify health-related issues in the workplace, including sick building syndrome and ergonomic problems.

Understand the legal and organizational frameworks for workplace health and safety, including the role of health and safety committees.

Recognize common workplace injuries and the importance of ergonomic principles in preventing them.

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Definitions:

360-Day Year

An accounting convention that simplifies interest calculations by assuming all months have 30 days, resulting in a 360-day year.

Bond

A fixed income instrument representing a loan made by an investor to a borrower, typically corporate or governmental.

Purchase Cost

The total expense incurred to acquire an asset, including the purchase price and associated costs.

360-Day Year

A financial convention or simplification to treat all months as 30 days in duration for the ease of interest calculations and financial analysis.