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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
Random Sampling Method In this method the units are selected in such a way that every item in the whole universe has an equal chance of being included. In the words of croxton
Based on the following graphs (next page) you should write a discussion report (2 pages) on: 1. Determination of whether the open-loop system response is consistent with a 1st o
Question: A car was machine washes each car in 5 minutes exactly. It has been estimated that customers will arrive according to a Poisson distribution at an average of 8 per hour.
Scatter Diagram The first step in correlation analysis is to visualize the relationship. For each unit of observation in correlation analysis there is a pair of numerical value
what is the aim of statistics?
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Two students are sitting in a lecture and considering whether to ask a question from the professor (both of them are considering the same question). If they both ask, the questi
Harmonic Mean The harmonic mean also called harmonic average, in the total numbers of items of variable divided by the sum of r reciprocals of the values of the variable. In
Consider the following new business venture. An agent is considering investment in one of three real estate parcels: • Option 1: multiunit rentals • Option 2: commercial building
1 Se toma una muestra de 81 observaciones con una desviación estándar de 5. La media de la muestra es de 40. Determine el intervalo de de confianza de 99% para la media
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