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In 2015, the student body of Lock Haven University consisted of 30% freshmen, 24% sophomores, 26%...

In 2015, the student body of Lock Haven University consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification.

Freshmen

83

Sophomores

68

Juniors

85

Seniors

64


We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year. The calculated value for the test statistic equals

Math   Statistics-And-Probability   
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