The specification limits for a product are 8 cm and 10 cm. A process that produces the product has a mean of 9.5 cm and a standard deviation

Question

The specification limits for a product are 8 cm and 10 cm. A process that produces the product has a mean of 9.5 cm and a standard deviation of 0.2 cm. What is the process capability, Cpk

in progress 0
Sapo 5 years 2021-09-03T04:00:08+00:00 1 Answers 95 views 0

Answers ( )

  1. thaiduong
    0
    2021-09-03T04:01:18+00:00
    Reply

    Answer:

    The value of Cpk is 0.83.

    Explanation:

    Given that,

    Upper specification limits = 10 cm

    lower specification limits = 8 cm

    Mean = 9.5

    Standard deviation = 0.2 cm

    We need to calculate the process capability

    Using formula of Cpk

    Cpk=min(\dfrac{USL-mean}{3\times SD}, \dfrac{mean-LSL}{3\times SD})

    Put the value into the formula

    Cpk=min(\dfrac{10-9.5}{3\times0.2}, \dfrac{9.5-8}{3\times0.2})

    Cpk=min(0.83,2.5)

    Cpk=0.83

    Hence, The value of Cpk is 0.83.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )