It would be 24 because 1 dozen = 12×2= 24
.67*8.7= 5.829
Estimated is about 5.8 or 6
The lower and upper limit of the 95% confidence interval is 183.2 and 196.0 unit.
What is a confidence interval ?
When you run your experiment again or resample the population in the same way, you can expect your estimate to fall within a certain range of values a certain percentage of the time. This is known as the confidence interval.
Main Body:
Given in question :
x- bar = 189.6
standard deviation = 10
C.I. = 95% =0.95
N=12
so, degree of freedom (D.F) = N-1 = 11
confidence level (α) = (1- C.I.)/2
= 0.025
according to t- distribution table for d.f = 11 and α= 0.025 , my result is 2.201
Now dividing standard deviation by square root of samples, we get
= 10/√12= 2.887
Lower limit = Mean - 2.201*2.887
= 189.6- 6.354
= 183.246
Upper limit = Mean + 2.201*2.887
= 189.6 + 6.354
= 195.954
Hence the result is 183.2 and 196.
to learn more about confidence interval , visit;
brainly.com/question/15712887
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Answer: D. Graph B is not reflected and is more steep than Graph A.
Explanation: y = 2/5x - 2 is graphed below on Graph A and has been transformed on Graph B. Graph B is not reflected because reflections don't look like that. But the graph is more steep in comparison to graph a.
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