You are interested in finding a
a) To compute the confidence interval use a t or z distribution.
c) If many groups of 14 randomly selected physical therapy patients 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 number of visits per patient and about "?" percent will not contain the true population mean number of visits per patient.
A population of values has a normal distribution with
Find the probability that a single randomly selected value is less than 191.2.
Find the probability that a sample of size
Write your answers as numbers accurate to 4 decimal places.