Hypothesis testing-building in philadelphia

Reference no: EM13113853

There are 4 entrances to a building in Philadelphia. The bldg maintenance super would like to know if the entrances are equally utilized. To investigate, 400 people were observed entering the building. The number using each entrance is reported below. At the .01 signficance level, is there a difference in the use of the four entrances?

Entrance Frequency

Main Street 140

Broad Street 120

Cherry St 90

Walnut St 50

Total 400

Reference no: EM13113853

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