You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Your sample size is 19. Find the critical value that corresponds to a...

You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Your sample size is 19.


Find the critical value that corresponds to a confidence level of 85%.

(Report answer accurate to three decimal places with appropriate rounding.)




t* = ±