D—nc‘m 9—069: 9—059: D—no‘m You are testingthe hypothesis that the mean commuting time to the IUPUI campus is less

than 20 minutes. The null and alternative hypothesis statements for this test are: Ho: 0320 H1: u>20

Ho: “<20 H1: 0220

Ho: 0220 H1: ”<20

Hg: “>20 H1: 0520 You are testing the hypothesis that the mean student commuting distance to the IUPUI

campus is at most 10 miles. The null and alternative hypothesis statements for this test Ho: 0210 H1: 0:: 10

Ho: us 10 H1: u> 10

Ho: 0.: 10 H1: 0210

Ho: u> 10 H1: 01:10 You are testingthe hypothesis that more than 75% ofdrivers on a freeway violate the

speed limit. The null and alternative hypothesis statements for this test are: Hg: 11 < 0.75 H1: r: 2 0.75

Hg: 11 2 0.75 H1: TE < 0.75

Ho: 11 > 0.75 H1: 1': s 0.75

Hg: 11 s 0.75 H1: 1': > 0.75 You are testingthe hypothesis that the proportion ofthe Hoosier adults with 12 or more

years ofschoolingis no diferent from the proportion ofUS adults with 12 or more years

ofschooling. The national proportion is 85%. The null and alternative hypothesis

statements for this test are: Hg: 11 at 0.85 H1: r: = 0.85

Ho: 11 = 0.85 H1: r: at 0.85

Ho: 11 s 0.85 H1: TE > 0.85 Hg: 11 2 0.85 H1: 1': < 0.85