Of Number 15 10 8 20 185 Students Average 85 90 82 80 85 90 Grade School Administrators Wondered Whether Class Size And 1 (31.29 KiB) Viewed 26 times
Of Number 15 10 8 20 185 Students Average 85 90 82 80 85 90 Grade School Administrators Wondered Whether Class Size And 2 (39.06 KiB) Viewed 26 times
of Number 15 10 8 20 185 Students Average 85 90 82 80 85 90 Grade School administrators wondered whether class size and grade of students were related. A random sample of classes shown on the table above. 1. Calculate correlation coefficient, r. 3. Find the equation of the regression line. 4. Predict the average grade of the class in which 16 students.
A nutritionist claims that the average number of calories in a serving size candy bar is 78. A random sample 10 candy bars have the following calories in a serving size; 68, 75, 80, 85, 70, 77, 76, 80, 65, 80. Can you conclude that the average calories in a serving size of candy bars less than nutritionist claim at a = 0.05? Yes, because the test value -2.15 falls in critical region. No, because the test value 1.83 falls in critical region. No, because the test value - 1.22 falls in non-rejection region.
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