A researcher is interested in finding a 95% confidence interval for the mean number minutes students are concentrating on their professor during a one hour statistics lecture. The study included 132...

A researcher is interested in finding a 95% confidence interval for the mean number minutes students are concentrating on their professor during a one hour statistics lecture. The study included 132 students who averaged 41.8 minutes concentrating on their professor during the hour lecture. The standard deviation was 13.3 minutes. Round answers to 3 decimal places where possible.

b. With 95% confidence the population mean minutes of concentration is between
 ?   and
 ?
minutes.

c. If many groups of 132 randomly selected members are studied, then a different confidence interval would be produced from each group. About?
  percent of these confidence intervals will contain the true population mean minutes of concentration and about
?
percent will not contain the true population mean minutes of concentration.