Assignment:
Conduct the hypothesis test and provide the test statistic, critical value and or P-value, and state the conclusion.
Measuring Weights Example 1 in this section is based on the principle that when certain quantities are measured, the last digits tend to be uniformly distributed, but if they are estimated or reported, the last digits tend to have disproportionately more 0s or 5s. The last digits of the September weights in Data Set 3 in Appendix B are summarized in the table below. Use a 0.05 significance level to test the claim that the last digits of 0,1,2,....9 occur with the same frequency. Based on the observed digits, what can be inferred about the procedure used to obtain the weights?
|
Last digit
|
0
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
|
Number
|
7
|
5
|
6
|
7
|
14
|
5
|
5
|
8
|
6
|
4
|