Answered: A car mat manufacture been having…

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter29: Tolerance, Clearance, And Interference

Section: Chapter Questions

Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...

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Question

A car mat manufacture been having quality issues with its production. A series of tests were carried out to
measure the resulting pH of the most common carpet produced, Type 1, as a good indicator of quality.
For the following questions show all calculations and formula used.
1) What is the mean, mode and range of the pH after dyeing?
Table – Type 1
pH after
addition
of dye
5.105
to 5.3
5.305
to 5.5
5.5.05
to 5.7
5.705
to 5.9
5.905
to 6.1
6.105
to 6.3
6.305
to 6.5
No. of
samples 1 5 7 8 7 4 1
2) For pH after addition of dye calculate the standard deviation, showing your calculations

Histogram for part 1

Definition Definition Measure of central tendency that is the value that occurs most frequently in a data set. A data set may have more than one mode if multiple categories repeat an equal number of times. For example, in a data set with five item—3, 5, 5, 29, 473—the mode is 5 because it occurs twice and no other value occurs more than once. On a histogram or bar chart, the element with the highest bar represents the mode. Therefore, the mode is sometimes considered the most popular option. The mode is useful for nominal or categorical data (e.g., the most common color car that users purchase), but it is problematic for continuous data because it is more likely not to have any value that is more frequent than the other.

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