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Salespeople of a large corporation received an annual bonus based on their sales performance. The size of the bonuses was normally distributed with a mean

Salespeople of a large corporation received an annual bonus based on their sales performance. The size of the bonuses was normally distributed with a mean of $11,000 and a standard deviation of $2400. Complete parts (a) through (d) below.
Click here for page 1 of the Areas under the Normal Curve Table Click he
79.67% of the salespeople
(Round to the nearest hundredth as needed.)
(b) What percent of the salespeople received an annual bonus between $9000 and $13,800?
67.57% of the salespeople
(Round to the nearest hundredth as needed.)
d) Find the largest and smallest amounts for the middle 75% of the annual bonuses.
The smallest amount is $ and the largest amount is $
(Round to the nearest dollar as needed. Do not include the $ symbol in your answer.)
POSITIVE z Scores
TABLE A-2(continued) Cumulative Area from the LEFT
NEGATIVE z Scores
TABLE A-2 Standard Normal (z) Distribution: Cumulative Area from the LEFT
"Use these common values that result from interpolation:
\table[[z Score,Area],[-1.645,0.0500],[-2.575,0.0050]]

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