The masses of 50 castings were measured. The results in kilograms were as follows 4.6 4.7 4.5
Question: The masses of 50 castings were measured. The results in kilograms were as follows
| 4.6 | 4.7 | 4.5 | 4.6 | 4.7 | 4.4 | 4.8 | 4.3 | 4.2 | 4.8 |
| 4.7 | 4.5 | 4.7 | 4.4 | 4.5 | 4.5 | 4.6 | 4.4 | 4.6 | 4.6 |
| 4.8 | 4.3 | 4.8 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.6 | 4.7 |
| 4.4 | 4.6 | 4.5 | 4.4 | 4.3 | 4.7 | 4.7 | 4.6 | 4.6 | 4.8 |
| 4.9 | 4.4 | 4.5 | 4.7 | 4.4 | 4.5 | 4.9 | 4.7 | 4.5 | 4.6 |
a. Arrange the data in 8 equal classes between 4.2 and 4.9 kilograms.
b. Determine the frequency distribution.
c. Draw the frequency histogram and frequency polygon.
d. Calculate the mean, median and interquartile range.
e. Calculate the standard deviation for the data. You may wish to use a coded method.
f. Calculate the limits within which you would expect (i) 95% and (ii) 99% of components to fall.
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See Answer: The solution consists of 5 pages
Deliverables: Word Document
Deliverables: Word Document
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