A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. vyrial are the nun and alternative nypoteses? A Ho: H₁ H2 H₁ H1 H₂ но 11 - М2 H₁ H₁ H₂ The test statistic, t, is B. Ho H₁ H₂ H₁ H₁ H₂ Но Џ1 = H2 H₁ H₁

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