The data in the "subjects_iq.csv" file is from 3 groups of students (math, chemistry, and physics) on an IQ-related test. Using the given R file, load the data, calculate the values, and generate the visual summaries requested below.
Added by Casey G.
Step 1
$H_0$: There is no significant difference in the mean IQ scores among the three student groups (math, chemistry, and physics). $H_a$: There is a significant difference in the mean IQ scores among the three student groups (math, chemistry, and physics). Show more…
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The following data gives the number of hours 10 students spent studying and their corresponding grades on their midterm exams. Hours Spent Studying 0 1 1.5 2 3 3.5 4 4.5 5.5 6 Midterm Grades 60 63 69 72 75 78 81 84 87 90 Step 3 of 3 : Calculate the correlation coefficient, r. Round your answer to three decimal places.
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