Essay
The average score of a sample of 30 students on their second statistics examination was 85 with a standard deviation of 11.Is the variance of the population significantly more than 80? Use a .05 level of significance.
Correct Answer:
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H0: σ2 ≤ 80
Ha: σ2 > 80
chi-squa...View Answer
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Correct Answer:
Verified
H0: σ2 ≤ 80
Ha: σ2 > 80
chi-squa...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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