Length(cm)

36-38

38-40

40-42

42-44

44-46

46-48

48-50

50-52

52-54

54-56

Frequency

2

4

10

15

20

19

15

10

4

3

In an effort to curb the spread of covid-19 pandemic in Kenya, government researchers collected a sample of face masks and measured their lengths as shown in the table above. This was to determine if the length of the face masks is related to their safety. This was aimed at knowing the right and safety masks to use. Since tackling covid-19 is a major problem in developing Nations like Kenya, The government is taking this study more serious. Given that you are a science student, assist the government researchers in achieving the following;

a)The researcher's first objective is to determine if the masks have almost same length. Determine the percentage discrepancy in the mask lengths. (6 marks)

To confirm the discrepancy in (i), the researchers recommended for the type of imbalance and asymmetry from the sample mean of a data. Determine if there is a