B) what is the value of the sample test statistics? round your answer to three decimal places

The Toylot company makes an electric train with a motor that it claims will draw an average of only 0.8 ampere (A) under a normal load. A sample of nine motors was tested, and it was found that the mean current was x = 1.30 A, with a sample standard deviation of s = 0.45 A. Do the data indicate that the Toylot claim of 0.8 A is too low? (Use a 1% level of significance.) LO USE SALT What are we testing in this problem? O single mean O single proportion (a) What is the level of significance? State the null and alternate hypotheses. O Ho: ll = 0.8; H1: u = 0.8 O Ho: H = 0.8; H1 : H = 0.8 O Ho: 1 = 0.8; H, : H > 0.8 O Ho: P = 0.8; H,: p = 0.8 O Ho: P = 0.8; H, : p > 0.8 O Ho: P = 0.8; H, : P = 0.8 (b) What sampling distribution will you use? What assumptions are you making? The standard normal, since we assume that x has a normal distribution with known a. O The Student's t, since we assume that x has a normal distribution with unknown a. O The standard normal, since we assume that x has a normal distribution with unknown