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The list of anthropometric variables we would need to estimate to help the company choose a chair that buttock-popliteal length and body breadth.There is buttock-popliteal length and body breadth variables is help to design a chair that how much we want to keep buttock-popliteal length and the width of the body breadth.)

The 5^{th} percentile values of two anthropometric variables which are buttock-popliteal length and body breadth for males is:We need to convert 5% into probability by dividing 100 which is given below is:

From standard normal distribution table, we get the indicated area is cumulative region from the left of the indicated z score. The indicated z score for the area of 0.050 is -1.645.

We need to convert 95% into probability by dividing 100 which is given below is:

From standard normal distribution table, we get the indicated area is cumulative region from the left of the indicated z score. The indicated z score for the area of 0.9500 and indicative area 0.9500 is 1.645.

We need to convert the standard normal variable z to the normal random variable x using the formula is given below, where is the mean and is the standard deviation.The 95^{th} percentile values of two anthropometric variables which are buttock-popliteal length and body breadth for females is 1695.15 millimeter. For each of the two anthropometric variables which are buttock-popliteal length and body breadth for males and females, we will use 95^{th }percentile values which is 1695.15 millimeter to make design or purchasing designs.

The mean is 406 millimeter and the standard deviation is 30.50 millimeters from using excel functions.The percentage of the company’s female workers will be able to sit on the seats without having to adopt a posture in which they are “perched” on the edge of the seat is:Now, we go to the standard normal distribution table to find the associated probability. Since we want to find the area to the left and we get,

If we convert in percentage by multiplying 100 we get 42.07%.The percentage of the company’s female workers will be able to sit on the seats without having to adopt a posture in which they are “perched” on the edge of the seat is 42.07%.

The 5thpercentile values of two anthropometric variables for males is: From standard normal distribution table, we get the indicated area is cumulative region from the left of the indicated z score. The indicated z score for the area of 0.050 is -1.645.The equation of the 5thpercentile is:The 5thpercentile values of two anthropometric variables which are buttock-popliteallength and body breadth for males is 1568.4 millimeter.

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**Some of the homework help topics include :**

- Ergonomics,List of anthropometric variables,Buttock-popliteallength,Body breadth ,Deliminitation of ergonomics,Multidisciplinarity of ergonomics:,Participating sciences,Monodisciplinar & interdisciplinar
- Multidisciplinar and transdisciplinar ,Anthropology and biomechnics,Movement and spatial analysis of man at work,Anthropological standardization,Speciality of gender, age, races, professions, efficiency
- Dynamics of strength and pressure,Physiology of work: ,Functioning of organs and human systems: mosculosceletar, digestive, breathing, heart and circulatory, brain and nervous systems,Respondence of body on stress and its measurement
- Transforming activities:,Efficiency and fatigue,Measurements of physical stress and its evaluation,Mode of work and relaxation,Standards of capability,Factors of working environment,Safety and health protection
- Operating accidents ,working injuries & professional deseases,Evaluation of techincs and economics,Sociology & psychology of work,Anthropocentric and mechanocentric principle of design

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