Consider the following hypothesis test. Ho: M-μ₂ = 0 Ha: M-μ₂0 The following information was obtained from independent random samples. Assume normally distributed populations with equal variances. Sample 1 Sample 2 Sample Mean 45 42 Sample Variance 85 90 Sample Size 10 12 (A) The pooled sample variance is 87.75 (B) The test statistic is 4 (C) The degrees of freedom for the t-distribution are 20 (D) At a=0.05, reject Ho if t ≥1.725

MATLAB: An Introduction with Applications
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Consider the following hypothesis test.
Ho: μ₁¬μ₂ = 0
Ha: M-μ₂0
The following information was obtained from independent random samples.
Assume normally distributed populations with equal variances.
Sample 1
Sample 2
Sample Mean
45
42
Sample Variance
85
90
Sample Size
10
12
(A) The pooled sample variance is 87.75 (B) The test statistic is 4
(C) The degrees of freedom for the t-distribution are 20 (D) At a=0.05, reject H₁ if t≥1.725
Transcribed Image Text:Consider the following hypothesis test. Ho: μ₁¬μ₂ = 0 Ha: M-μ₂0 The following information was obtained from independent random samples. Assume normally distributed populations with equal variances. Sample 1 Sample 2 Sample Mean 45 42 Sample Variance 85 90 Sample Size 10 12 (A) The pooled sample variance is 87.75 (B) The test statistic is 4 (C) The degrees of freedom for the t-distribution are 20 (D) At a=0.05, reject H₁ if t≥1.725
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