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Discussion File Feedback # 20 Using the 95% CI given on the prior problem (repeated here);...

Discussion File Feedback # 20

Using the 95% CI given on the prior problem (repeated here);

Variable

n

Sample Mean

Std. Err.

L. Limit

U. Limit

pH_level

90

4.577889

not given

4.5181427

4.6376348

What are the upper and lower bounds if we had constructed a 90% confidence interval, using the same sample data?

a.

(4.518 ; 4.638)
b.

(4.528 ; 4.628)
c.

(4.559 ; 5.717)
d.

(4.507 ; 4.649)
e.

(4.757 ; 4.899)
Math   Statistics-And-Probability   
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