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There are 500 employees in a firm, and 45% are female. A sample of 60 employees is selected randomly. a. Determine the standard error of

There are 500 employees in a firm, and 45% are female. A sample of 60 employees is selected randomly.

a. Determine the standard error of the proportion.

b. What is the probability that the sample proportion of females is between .40 and .55?

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