Question $1[15]$

$1\mathrm{.}1$ Briefly explain the Pareto Principle

$1\mathrm{.}2$What is a process flow diagram?

$1\mathrm{.}3$ What is the difference between the defect check sheet and the defect location check sheet?

$(3)$

$1\mathrm{.}4$ Differentiate between the dispersion analysis and the cause enumeration type of cause$-$and$-$effect diagram.

$1\mathrm{.}5$What does $"$no correlation" mean on a scatter diagram?

Question $2[47]$

Perform a Pareto analysis for the internal failures for the following data in table $1$ below.

Table $1$ The types of internal failure

$2\mathrm{.}1$ Calculate Total Frequency and Total Cost Impact.

$(4)$

$2\mathrm{.}2$ Calculate Percentage for Each Failure Type. For Frequency and for Cost Impact.

$2\mathrm{.}3$ Calculate the cumulative percentage for frequency and cost impact.

$2\mathrm{.}4$Create a Pareto Chart: Use the sorted data to create a bar chart with a line graph for cumulative percentage.