Answer:
n=40, = 23.16, s= 2.31, C= 90%
formula for confidence interval is
df = n-1 = 40-1 =39
here = 0.10
= 0.05
find both critical value for df= 39 as follows using x2 table
X20.05 = 54.5722
X20.95 = 25.6954
Round it to 2 decimals
1.95 Chocolate chips < < 2.85 Chocolate chips
This Question: 6 pts 6 of 15 (10 completes s Question Help * A chocolate chip cookie manufacturing company recorded...
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