Suppose that prices of Fuji apples are normally distributed. Ryan selected a sim
ID: 3223205 • Letter: S
Question
Suppose that prices of Fuji apples are normally distributed. Ryan selected a simple random sample of 13 grocery stores and found that the mean price of Fuji apples at these stores was $1.88 per pound and that the standard deviation was $0.12 per pound.
Ryan plans to use this information to construct a confidence interval for , the mean price of a pound of Fuji apples. Have the requirements for a one-sample tconfidence interval been met?
The requirements (have/have not) been met based on these reason
CHECK ALL THAT APPLY
the sample is not random.
the sample is random.
the population standard deviation is known.
the population is normal.
the sample size is too small.
the population is not normal.
the population standard deviation is not known.
the sample size is large enough.
*Its not- The requirments have not been met because - sample is too small
- the population standard deviation is known
Explanation / Answer
random sample of 13 stores selected
mean = $1.88
sd = $0.12
The requirements have been met
the sample is not random > uncheck
The sample is random > checked
the population standard deviation is known > checked
the population is normal > checked
the sample size is too small > uncheck
the population is not normal > uncheck
the population standard deviation is not known > uncheck
the sample size is large enough > checked
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