A jewelry designer claims that women have wrist breaths with a mean of at most 5 cm. A simple random sample of the wrist breaths of 33 women has a mean of 5.47 cm. Assume that the population standard deviation is 0.06. With a 8% significance level, we wish to test the designer's claim.

The critical value is

(Round your answer to two decimal places)

Based on a simple random sample of 32 observations from a normal population, it was found that the average is 45. Assume that the population standard deviation is 8, and use a 4% significance level, to test the claim that the population mean is at least 50.

The critical value is

(Round your answer to two decimal places).