A Statistics Teacher Started Class One Day by Drawing the Names

question 39

Multiple Choice

A statistics teacher started class one day by drawing the names of 10 students out of a hat and asked them to do as many pushups as they could. The 10 randomly selected students averaged 15 pushups per person with a standard deviation of 9 pushups. Suppose the distribution of the population of number of pushups that can be done is approximately normal. The 95% confidence interval for the true mean number of pushups that can be done is ​

• A)5.75 to 24.25.
• B)8.56 to 21.40.
• C)11.31 to 18.55.
• D)13.02 to 16.98.

---

Definitions:

Acupuncture Therapy

A form of traditional Chinese medicine involving the insertion of thin needles into the body to alleviate pain and treat various physical, mental, and emotional conditions.

Thrombocytopenia

A condition characterized by an abnormally low number of platelets in the blood, leading to increased bleeding and bruising.

Herniated Lumbar Disks

A condition where the soft center of a spinal disk in the lumbar region pushes through a crack in the exterior casing, often causing back pain.

Competitive Strategies

Approaches that an organization adopts to outperform competitors and achieve a superior position in the industry.