A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, , of the population from which the sample was drawn. Use the critical-value approach.

Sample mean = 7.5 s = 1.8 n = 18 = 0.01

H₀: = 10

H₁: <10

1. The test statistics is (Round to three decimal places)
2. The critical value(s) is/are (If there are two critical values separate each with a comma.)
3. The decision is to the null hypothesis. (Enter R if you reject and enter F if you fail to reject)