Question

Asked Nov 11, 2019

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Step 1

Given information:

Sample size (n) = 28

Confidence level = 0.90

Sample variance = 9.61

Step 2

Sample standard deviation is square root of sample variance. So,

Step 3

Significance level = 1- Confidence level

= 1- 0.90

= 0.10

Degree of...

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