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The mean GPA at a certain large university is 2.80. A random sample of 20 business...

The mean GPA at a certain large university is 2.80. A random sample of 20 business students found a mean GPA of 2.95 with a standard deviation of 0.31. Is there sufficient evidence to show that the mean GPA for business students is greater than the mean GPA for the university?

a) state the hypothesis

b) calculate the test statistic

c) find the p-value

d) make a statistical decision at a level of significance of 0.10

e) state your conclusion in the context of the problem

Math   Statistics-And-Probability   
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