A student in STAT 151 generates 200 independent random samples of size 100 from a standard...
A student in STAT 151 generates 200 independent random samples of size 100 from a standard normal distribution to make 80% confidence intervals. How many confidence intervals should the student expect to include zero?
Homework Answers
In most general terms, for a 80% CI, we say “we are 80% confident that the true population parameter is between the lower and upper calculated values”.
Therefore total number of confidence interval should student expect to include zero is 160
i.e. 200×0.8=160
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