A manufacturer of kitchen mixers conducted a survey of consumer complaints about

Question

A manufacturer of kitchen mixers conducted a survey of consumer complaints about their appliance and found they fell into the six categories shown in the table.
a. What percentage of the complaints are about appearance? b. What percentage of the complaints occur during the warranty period? c. What percentage of complaints that occur during the warranty period are electrical? d. What percentage of all complaints are mechanical complaints after the warranty period? a. What percentage of the complaints are about appearance? b. What percentage of the complaints occur during the warranty period? c. What percentage of complaints that occur during the warranty period are electrical? d. What percentage of all complaints are mechanical complaints after the warranty period? Reason for complaint Electrical Mechanical Appearance Total During warranty period After warranty period Total 63 37 100 32 18 12 30 13 22 35 35

Explanation / Answer

A manufacturer of kitchen mixers conducted a survey of consumer complaints about their appliance and found they fell into the six categories shown in the table.

a. What percentage of the complaints are about appearance?

That is here we have to find P(complaints are about appearance)

P(complaints are about appearance) = 35 / 100 = 0.35

b. What percentage of the complaints occur during the warranty period?

That is here we have to find P(complaints occur during the warranty period).

P(complaints occur during the warranty period) = 63 / 100 = 0.63

c. What percentage of complaints that occur during the warranty period are electrical?

That is here we have to find P(complaints that occur during the warranty period are electrical).

P(complaints that occur during the warranty period are electrical) = 18 / 100 = 0.18

d. What percentage of all complaints are mechanical complaints after the warranty period?

That is here we have to find P(complaints are mechanical complaints after the warranty period).

P(complaints are mechanical complaints after the warranty period) = 22 / 100 = 0.22

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