What are the the conditions for the confidence interval to be valid?

MATLAB: An Introduction with Applications
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ISBN:9781119256830
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Statistics and Probability
When a very large math class in school was
surveyed and asked, “About how many hours
do you study during a typical week?" The
mean response of 300 students
were Suppose that we know that the study
time follows a normal distribution with
standard deviation hours in the population
of all math students at this school, .
Use the survey result to give a 95%
confidence interval for the mean study time of
all the math students.
What are the the conditions for the
confidence interval to be valid?
Transcribed Image Text:Statistics and Probability When a very large math class in school was surveyed and asked, “About how many hours do you study during a typical week?" The mean response of 300 students were Suppose that we know that the study time follows a normal distribution with standard deviation hours in the population of all math students at this school, . Use the survey result to give a 95% confidence interval for the mean study time of all the math students. What are the the conditions for the confidence interval to be valid?
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