Question

Asked Oct 18, 2019

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Step 1

**The critical value of Z _{0.10 }is obtained below:**

From the given information, salaries of dogcatchers are normally distributed with population standard deviation is $3,000 and population mean as $28,000.

From the EXCEL, using the formula, =NORM.INV(0.10,0,1), the critical value is –1.28.

Step 2

**The salary cuts off the poorest 10% of dog catchers is obtained below:**

The required valu...

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