EU (European Union) Countries Report That 46% of Their Labor

question 27

Multiple Choice

EU (European Union) countries report that 46% of their labor force is female. The United Nations wants to determine if the percentage of females in the U.S. labor force is
The same. Based on a sample of 500 employment records, representatives from the
United States Department of Labor find that the 95% confidence interval for the
Proportion of females in the U.S. labor force is .357 to .443. If the Department of Labor
Wishes to tighten its interval, they should

• A) increase the confidence level.
• B) decrease the sample size.
• C) increase the sample size.
• D) Both A and B
• E) Both A and C

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Definitions:

Follicles

Small sacs in the skin and the reproductive system that can produce hair and release eggs, respectively.

Primordial Follicles

The earliest stage of development of an ovarian follicle, consisting of an oocyte surrounded by a single layer of granulosa cells.

Graafian Follicles

Mature ovarian follicles that are ready to release an egg during ovulation, named after Regnier de Graaf.

Bulbourethral Gland

One of two small compound glands that produce a mucoid secretion; it discharges through a small duct into the spongy urethra.