A 21-inch piece of steel is cut into three pieces so that the second piece is twice as long as the first piece, and the third pi
ece is three inches more than six times the length of the first piece. Find the lengths of the pieces
1 answer:
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Answer:
0.86
Step-by-step explanation:
The z-score we need to make the comparison is given by
where
= the standard deviation established in the study
n = the sample size
and for the Normal distribution N(0,1) we want to find
<em>P(X > -1.0801) </em>
By using a spreadsheet or the table attached, we find that
P(X > -1.0801) = 0.86
(See picture attached)
