Assume That the Following Confidence Interval for the Difference in the Mean

question 20

Multiple Choice

Assume that the following confidence interval for the difference in the mean time (in minutes) for male students to complete a statistics test (sample 1 ) and the mean time for female students to complete a statistics test (sample 2) was constructed using independent simple random samples. -0.2 minutes $< \mu _ { 1 } - \mu _ { 2 } < 2.7$ minutes What does the confidence interval suggest about the difference in length between male and female test completion times?

• A) Male students take longer to complete a statistics test.
• B) Female students take longer to complete a statistics test.
• C) There is no difference in the length of time for statistics test completion between male and female students.

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Definitions:

Daily Values

Nutritional benchmarks on food labels representing the recommended daily intake of various nutrients based on a 2,000 calorie diet.

Nutrient Context

The evaluation of foods and nutrients within the larger framework of the diet and its overall effects on health.

Food Labels

Information provided on packaging of food products, detailing nutritional content, ingredients, and other relevant information.

Complete Proteins

Proteins that contain all the essential amino acids in sufficient amounts for human health, commonly found in animal products and a few plant sources.