Question

In #33-36, use the following information. Test the claim that the mean female reaction time to a highway signal is less than 0.7 s. When 18 females are randomly selected and tested, their mean is 0.668 s. Assume that σ = 0.1 s, and use a 5% level of significance.

33. Give the null hypothesis in symbolic form. (a) H0 :µ < 0.7 (b) H0 :µ > 0.7 (c) H0 :µ ≤ 0.7 (d) H0 :µ ≥ 0.7 (e) H0 : p ≥ 0.7

34. Determine the appropriate test statistic. (a) z = 1.528 (b) z = −1.645 (c) z = −1.36 (d) t = 0.971 (e) t = −1.74

35. Find the appropriate critical value(s). (a) z = −1.96 (b) z = 1.645 (c) z = −1.645 (d) t = 1.74 (e) t = −1.74

36. Make the appropriate decision. (a) Reject H0 (b) Fail to reject H0

Answer 1