Lucia hypothesizes that her friends scored better than the average student on a physics exam. She obtains the exam scores of her 4 friends and calculates the average score, which is 86%. If the overall average for the exam is 82% with a standard deviation of 3.2, is Lucia's hypothesis supported, assuming an alpha level of 0.05? Why?

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The Answer of Lucia hypothesizes that her friends scored better than the average student on a physics exam. She obtains the exam scores of her 4 friends and calculates the average score, which is 86%. If the overall average for the exam is 82% with a standard deviation of 3.2, is Lucia's hypothesis supported, assuming an alpha level of 0.05? Why?

Lucia Hypothesizes That Her Friends Scored Better Than the Average