Question

In: Statistics and Probability

Find the critical value given a sample size of 20 with 98% confidence Multiple choice: a)...

Find the critical value given a sample size of 20 with 98% confidence

Multiple choice:

a) 2.086

b) 2.539

c) 2.093

d) 2.528

Solutions

Expert Solution

Given that, sample size (n) = 20

Significance level = 1 - 0.98 = 0.02

Degrees of freedom = 20 - 1 = 19

Using t-table we get, t-critical value at 0.02 level of significance with 19 degrees of freedom is,

=> Critical value = 2.539

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