1. In an ANOVA, the square root of the following expression serves as an estimat
ID: 3259296 • Letter: 1
Question
1. In an ANOVA, the square root of the following expression serves as an estimate for the variance 2 which is common to all the "l" populations:
MS(Between)
MS(Within)
MS(Total)
MS(Residual)
2. In a regression of weight (lbs) on height (inches), it was found that b0 = -220 and b1 = 6. If a given individual is 72 inches tall, the regression predicts a weight of?
3. A 95% confidence interval is desired for a data set with:
b1 = -0.07
Sx = 68.6
Sy = 6.03
Se = 3.86
n = 32
Which interval is the closest match to the given data?
[0.0494, 0.0906]
[-7.9532, 7.8132]
[-2.2818, 2.1418]
[-0.0906, -0.0494]
4. Consider again the data set with:
b1 = -0.07
Sx = 68.6
Sy = 6.03
Se = 3.86
n = 32
The value of the correlation coefficient is closest to:
-0.9
-0.8
-0.2
0.4
0.7
MS(Between)
MS(Within)
MS(Total)
MS(Residual)
Explanation / Answer
1) The within treatment mean square measures the random variability among experimental units, an estimate of the population variance, 2.
So, answer is MS(within)
2) The regression equation is Height = - 220 + 6.00 * Weight
If height = 6 inches
6 = - 220 + 6.00 * W
Weight = 226/6 = 37.66 lbs
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