Measurements on cumulative radiation dosage were made on workers at an atomic we
ID: 3175739 • Letter: M
Question
Measurements on cumulative radiation dosage were made on workers at an atomic weapons plant over a 6-month period. The following data is for workers whose dosage was assessed at three different locations.
Location A: 11, 27, 19, 21, 31, 14, 28, 22, 18, 10
Location B: 29, 41, 19, 39, 24, 35, 46, 64, 52, 23
Location C: 37, 51, 42, 28, 35, 48, 75, 49, 61, 52
Enter this data into SPSS. Define a new variable, called num_location, that recodes A, B, and C as 1, 2, and 3, respectively.
Perform an ANOVA test.
The type of test statistic is (z, t, c, or F) where c stands for 2.
The value of the test statistic is (2, 13.448, 1.235, 0)
The P-value is (2, 13.448, 1.235, 0)
At a 5% significance level, the appropriate conclusion is (a, b, c, d)
a: The mean dosage levels among two of the locations are the same.
b: The mean dosage levels among all three locations are different.
c: The mean dosage levels among the three locations are not significantly different.
d: The mean dosage levels among at least two of the locations are significantly different.
Should a Tukey post hoc test be performed? (y, n)
Explanation / Answer
The test statistic is F.
F = 13.448.
The p-value is 0.
The mean dosage levels among at least two of the locations are significantly different.
Yes.
Thanks.