A psychiatrist is interested in finding a 95% confidence interval for the tics per hour exhibited by children with Tourette syndrome. The data below show the tics in an observed hour for 13 randomly...

A psychiatrist is interested in finding a 95% confidence interval for the tics per hour exhibited by children with Tourette syndrome. The data below show the tics in an observed hour for 13 randomly selected children with Tourette syndrome.

a. To compute the confidence interval use a ?    distribution.

b. With 95% confidence the population mean number of tics per hour that children with Tourette syndrome exhibit is between ? and  ? days.

c. If many groups of 13 randomly selected  children with Tourette syndrome are observed, then a different confidence interval would be produced from each group. About ? percent of these confidence intervals will contain the true population mean number of tics per hour and ? about  percent will not contain the true population mean number of tics per hour.