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A student at South Plains College claims that the average cost of textbook is more than...

A student at South Plains College claims that the average cost of textbook is more than $75 dollars. Test this student’s claim using a 0.05 level of significance. A random sample of 15 textbooks had an average price of $78.15 and a standard deviation of $8.80. (8 pts)
Math   Statistics-And-Probability   
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