Question

The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and a standard deviation of 7 ounces. 32 randomly selected people are surveyed. Round all answers to 4 decimal places where possible.

- What is the distribution of XX? XX ~ N(,)
- What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)
- What is the probability that one randomly selected person drinks between 16.8 and 17.4 ounces of coffee per day?
- For the 32 people, find the probability that the average coffee consumption is between 16.8 and 17.4 ounces of coffee per day.
- For part d), is the assumption that the distribution is normal necessary? NoYes
- Find the IQR for the average of 32 coffee drinkers.

Q1 = ounces

Q3 = ounces

IQR: ounces

Answer #1

The amount of coffee that people drink per day is normally
distributed with a mean of 16 ounces and a standard deviation of 7
ounces. 32 randomly selected people are surveyed. Round all answers
to 4 decimal places where possible.
What is the distribution of XX? XX ~ N(,)
What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)
What is the probability that one randomly selected person
drinks between 15.6 and 16.5 ounces of coffee per day?
For the 32...

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