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. OA. Ho: Hi#H2 H₁: H₁

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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.
OA. Ho: Hy#H2
H₁: M₁ <H₂
OC. Ho: M₁ = µ¹₂
H₁: M₁ <H₂
a. Use a 0.05 significance level to test the claim that students taking nonproctored tests get a higher mean score than
those taking proctored tests.
What are the null and alternative hypotheses?
B. Ho: ₁ = ₂
H₁: H₁ H₂
D. Ho: H₁
H₁: H₁
μ
n
X
H₂
H₂
Proctored Nonproctore
μ₁
H₂
32
34
82.72
19.05
78.75
10.34
Transcribed Image Text: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. OA. Ho: Hy#H2 H₁: M₁ <H₂ OC. Ho: M₁ = µ¹₂ H₁: M₁ <H₂ a. Use a 0.05 significance level to test the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. What are the null and alternative hypotheses? B. Ho: ₁ = ₂ H₁: H₁ H₂ D. Ho: H₁ H₁: H₁ μ n X H₂ H₂ Proctored Nonproctore μ₁ H₂ 32 34 82.72 19.05 78.75 10.34
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