Answer:
Option B.
Step-by-step explanation:
Given information:
We need to find 95% confidence interval estimate for the difference between the means of two normally distributed populations.
Formula for confidence interval:
From the standard normal table it is clear that the z value at 95% confidence interval is 1.96.
Substitute the given values in the above formula.
The lower confidence limit is −18.78.
Therefore, the correct option B.
Step-by-step explanation:
According to 18 per dozen
18 ÷ 12 = 1.5
So she sells for 1.20
1.5 - 1.20 = 0.3
Or 25 %
Answer:
According to the clues provided, the selected jar is jar C.
Hope this helps!
This is an incomplete problem
Step-by-step explanation:
a)6!+12-3
=6!+9
b)-18+3!+4
=3!-14
=3!+(-14)
both are in the form if (+)!+constant.
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