Question

You wish to test the following claim at a significance level of 0.10. H 0 : μ = 53.1 H 1 : μ < 53.1 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size 115 with a mean of 49.3 and a standard deviation of 15.2. What is the critical value for this test? (Report answer accurate to 3 decimal places.) What is the test statistic for this sample? (Report answer accurate to 3 decimal places.) The test statistic is in the critical region not in the critical region This test statistic leads to a decision to reject the null accept the null fail to reject the null As such, the final conclusion is that there is sufficient evidence to conclude that the population mean is equal to 53.1. there is not sufficient evidence to conclude that the population mean is equal to 53.1. there is sufficient evidence to conclude that the population mean is less than 53.1. there is not sufficient evidence to conclude that the population mean is less than 53.1.

Answer 1