(Answered) The national average final grade for students enrolled in

Statistics

The national average final grade for students enrolled in college mathematics is a 75% and the distribution follows a normal distribution. A random sample of 15 students at Florida business college had a mean of 84% with a standard deviation of 6%. At the .05 level of significance, is that enough evidence to conclude that students at Florida business college score higher than the national average?

State the decision rule for .05 significance level?

Compute the value of the test statistic?

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