The following data give the numbers of computer keyboards assembled at the Twentieth Century Electronics Company for a sample of 25 days.

zabuheljz

zabuheljz

Answered question

2022-08-11

The following data give the numbers of computer keyboards assembled at the Twentieth Century Electronics Company for a sample of 25 days.
60 59 60 63 61 54 59 55 55 55 56 57 59 58 58 57 48 49 52 51 51 50 54 53 53

Answer & Explanation

Alejandra Blackwell

Alejandra Blackwell

Beginner2022-08-12Added 14 answers

Formula for finding percentile rank is,
Percentie Rank = Number of values below  x + 0.5 Number of values in the data set × 100
Obtain the percentile rank of 59.
The percentile rank of 59 is obtained below:
Arrange the given data in the ascending order.
48,49,50,51,51,52,53,53,54,54,55,55,55,56,57,57,58,58,59,59,59,60,60,61,63. That is, n=25.
There are 18 values below 59. That is x=18.
Percentie Rank = 18 + 0.5 25 × 100 = 18.5 25 × 100 = 0.74 × 100 = 74 %
Thus, the percentile rank of 59 is 74%.

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