Question

p-value too

5 of 11 (11 complete) core: 0.63 of 5 pts 39.2.7-1 HW Score: 57.05%, 31.38 of 55 pts Question Help P2 Proctored Nonproctored A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent i simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are n31 32 equal. Complete parts (a) and (b) below. Use a 0.05 significance level for both parts 81.31 20.24 Test the claim that students taking nonproctored tests get a higher mean score than those taking proclored tests What are the null and alternative hypotheses? VA. Ho: =12 H₂ H1 H2 oc. Ho HH2 H:14<H2 COB Ho H = H2 HAHH2 on Ho HH2 H: *12 The test statistic, tis (Round to two decimal places as needed) Enter your answer in the answer box and then click Check Answer. 1 parts remaining Clear Al Check Answer

Answer 1

НА < м, = (80x1072) 34 (31X/20.24) @ е реал в но" МЕД, Chris?+ (21) (M.) HM2-1) sp=264-7039 30+31 The test statistic t= (2152) - (78:68-813)) v spettatore √ 264.72039 (+ 3 + 32 ) The test statistic t-1-006H.] df='61 p-value = 10.22] (0.2623)