The Sugar Producers Association Wants to Estimate the Mean Yearly

question 118

Multiple Choice

The Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample
Of 16 people reveals the mean yearly consumption to be 27 kg with a sample standard deviation of
9 kg. Assume a normal population. For a 90% confidence interval, what is the critical value needed?

• A) t = 1.753
• B) t = 2.131
• C) t = 2.947
• D) z = 1.645
• E) z = 1.96

---

Definitions:

Sleeping Pills

Medications used to help a person fall asleep or stay asleep.

Melatonin

A hormone produced by the pineal gland that regulates sleep-wake cycles and is involved in various biological rhythms.

Consciousness

Consciousness is the state of being aware of and able to think about one’s own existence, sensations, thoughts, surroundings, and experiences.

Awareness

The state of being conscious or informed about something.