The Economics Department Secretary Wants to Estimate the Average Number $\bar { x }$

question 138

Short Answer

The economics department secretary wants to estimate the average number of bottled drinks sold each day out of the vending machine.Similar vending machine sales have a standard deviation of 9 bottles per day.He wants to be 95-percent confident that the estimate, $\bar { x }$ ,obtained is within 3 bottles of the true mean $\mu$ .How large a sample is needed if the limit of the Coke machine for one day is 120?

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Definitions:

Cervix

The lower part of the uterus that opens into the vagina, playing essential roles in menstruation, childbirth, and screening for certain health conditions.

Corpora Cavernosa

Two cylindrical chambers of erectile tissue found in the penis, which fill with blood to produce an erection.

Infundibulum

The tube-shaped end of each fallopian tube.

Clitoris

A sensitive organ located at the anterior end of the vulva, involved in female sexual pleasure.