Maxwell Cantor,VP of Human Resources of Asimov Aerospace Industries Inc $\alpha$

question 62

Multiple Choice

Maxwell Cantor,VP of human resources of Asimov Aerospace Industries Inc.,is reviewing the technical certifications of employees in different divisions of the company.His goal is having 90% of technical employees with up-to-date certifications.The north-east division typically has maintained higher rates of up-to-date certifications than the southern division.He selects a random sample of 250 employees from the north-east division and 300 from the southern division and finds out that the number of employees with up-to-date certifications are 230 in the north-east division and 265 in the southern division.Assuming $\alpha$ = 0.01,the observed z value is ______.

• A) 1.027
• B) 1.219
• C) 1.427
• D) 1.619
• E) 1.827

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Definitions:

Population Standard Error

A measure of the variability or dispersion of a population parameter, estimating the standard deviation of those parameters.

Confidence Interval

A spectrum of values, stemming from the statistics of samples, that is probable to contain the value of an elusive population parameter.

Mean

The arithmetic average of a set of numbers, calculated by dividing the sum of the values by the number of values.

Pay Plan

A structure outlining how employees are compensated, including salary levels, bonuses, and increments.