AnswersAA - F26 Advanced AlgebraApplications with Standard Normal Distribution

Applications with Standard Normal Distribution Answers

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1
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A simple random sample of ten people is taken from the set of all registered voters in a given district to determine their average age. Which of the following is a reason why you can not make a statistical inference on the population?

A
The sample size is not appropriate.
B
The population isn’t given to be approximately normal.
C
The sample size isn’t given to be normal.
D
The wrong sampling method was used.
2
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A convenience sample of forty people is taken from a population. Which of the following is a reason why you can not make a statistical inference on the population?

A
The sample size is not large enough.
B
The population isn’t given to be approximately normal.
C
The sample is not given to be normally distributed.
D
The wrong sampling method was used.
3

Between 7.2 and 8.8 hours of sleep:

A
90% confidence level
B
95% confidence level
C
99% confidence level
4

Which confidence interval is most likely to contain the population parameter?

A
between 7.3 and 8.7 hours of sleep
B
between 7.0 and 9.0 hours of sleep
C
between 7.2 and 8.8 hours of sleep

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