  How do you solve this problem?Based on the model​N(11571157​,8787​)describing steer​ weights, what are the cutoff values for​a) the highest​ 10% of the​ weights?​b) the lowest​ 20% of the​ weights?​c) the middle​ 40% of the​ weights? ��a) The cutoff weight for the highest​ 10% of the steer weights is _______pounds.

Question

How do you solve this problem?

Based on the model
​N(11571157​,8787​)
describing steer​ weights, what are the cutoff values for
​a) the highest​ 10% of the​ weights?
​b) the lowest​ 20% of the​ weights?
​c) the middle​ 40% of the​ weights?

��a) The cutoff weight for the highest​ 10% of the steer weights is _______
pounds.
Step 1

(a)

The cutoff weight for the highest 10% of the steer weights is obtained as follows: help_outlineImage TranscriptioncloseFrom the Standard Normal Table, 1,1571.28 x 87 the value of P(Z> :) =0.10 is 1.28 1,268.36 fullscreen
Step 2

Thus, the cutoff weight for the highest 10% of the steer weights is 1,268.36 pounds.

(b)

The cutoff weight for the lowest 20% of the steer weights is obtained as follows: help_outlineImage TranscriptioncloseFrom the Standard Normal Table, 1,157-0.84x 87 the value of P(Z<) = 0.20 is -0.84 1,083.92 fullscreen
Step 3

Thus, the cutoff weight for the lowest 20% of the steer weights is 1,083.92 pounds.

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