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Estimate the standard deviation of the process:
Draw the X (bar) and R charts for the data given and give your comments about the process under study. Estimate the standard deviation of the process.
Sample No.
Individual Measurement
1.
72
70
-70
64
2.
68
67
65
3.
66
62
4.
69
5.
6.
7.
60
61
8.
71
9.
10.
11.
73
12.
13.
63
14.
15.
74
Ques: Differentiate between :
i) Parameter and Statistics
ii) Target Population and Sampled Population
iii) Stratified Random Sampling and Cluster Sampling
iv) Multistage Sampling and Multiphase Sampling
v) Sampling errors and Non-Sampling Errors
The State Department of Taxation wishes to investigate the effect of experience, x, on the amount of time, y, required to fill out Form ST 1040AVG, the state income-averaging form.
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