A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75
ID: 3310662 • Letter: A
Question
A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of six tubes is taken every three hours and weighed with the following results: WEIGHT OF TOOTHPASTE
Time 7 am 6.69 6.68 6.79 6.77 6.74 6.76
10 am 6.71 6.72 6.71 6.76 6.75 6.74
1 pm 6.66 6.68 6.67 6.71 6.76 6.78
4 pm 6.73 6.74 6.72 6.76 6.78 6.75
7 pm 6.75 6.73 6.75 6.77 6.79 6.75
What is the value of the lower control factor of the range? Multiple Choice
0
2.115
2.004
3.0
Explanation / Answer
for sample size per sample is =6
from table of fators for range lower control factor of the range for n=6 is D3 =0.00000
therefore 0 is correct option
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