A sample of 21 elements is selected to estimate a 90% confidence interval for the variance of the population. The chi-square value(s) to be used for this interval estimation is (are)

a. -1.96 and 1.96
b. 12.443
c. 10.851 and 31.410
d. 12.443 and 28.412


C

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Indicate whether the statement is true or false

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One of the most effective strategies for reducing stage fright is to ________

A) memorize the presentation B) know the subject thoroughly C) have a complete "script" of the presentation handy for reference D) develop the ability to "wing it"

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The employees of Freddy Auto Sales decided to select Peter as their bargaining representative for the purposes of collective bargaining by the majority of the employees. The major issues of negotiation include rates of pay, wages, hours of employment, or other conditions of employment. In this scenario, Peter is covered under the:? A) ?Workmen's Compensation Act

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Answer the following statement true (T) or false (F)

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