2) Which type of control chart (p or X-bar) would probably be most appropriate i

Question

2) Which type of control chart (p or X-bar) would probably be most appropriate in the following situations? f Study about the time to process a loan Study about the number of years for a student to complete an Accounting degree. a) application b) Study on tardiness for work g) Study about a doctor's correct/incorrect diagnoses of patients' illnesses. c) Study about travel time along Interstate 35E between Oklahoma City and Dallas. h) Study about the amount of caffeine consumed annually by a college student. d) Study about time required to prepare for an Eco Stat exam i) Study about the time required to find a parking space ón campus e) Study of correct versus incorrect data entries.

Explanation / Answer

X-bar is the mean chart which helps to set control limits for observations basis averages and standard deviation

= chart is used to monitor proportion of defects. It is used when observation can be categorized as pass or mail

a) X- bar chart as control limits can be set

b) p chart as either there is tardiness or not

c) X -bar as control limit can be set for travel time

d) X-bar chart for average time

e) p -chart as entries can be categorized as correct or incorrect

f) X-bar for processing time calculation

g) p-chart for correct and incorrect data comparison

h) X-bar for computing amount of consumption

i) X-bar chart

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