Essay
The national average on the ACT math test is 20.5. A sample of n = 9 incoming college freshmen is tested at a local university. The mean of the sample is M = 22.7 with a s = 4. Does the sample mean differ significantly from the national average? Test at α = .05.
Correct Answer:
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Step 1:
H₀: μ = 20.5
H₁: μ ≠ 20.5
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Correct Answer:
Verified
H₀: μ = 20.5
H₁: μ ≠ 20.5
Step 2...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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