Mathematics
Mathematics, 18.10.2019 10:30, Thatweirdgirly5

Arecent survey of 8,000 high school students found that the mean price of a prom dress was $195.00 with a standard deviation of $12.00. alyssa thinks that her school is more fashion conscious and spent more than $195.00. she collected data from 20 people in her high school and found that the average price spent on a prom dress was $208.00. which of the following is the correct z-statistic for this situation?
a.0.24
b.4.85
c.7.51
d.58.14

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