Question

1) Assume that a firm has selected a random sample of 100 employees from its production line
representing their monthly working hours and obtain the data shown in the table below
Class Interval
Frequency
130-134
3
135-139 140-144
12
21
145-149 150-154
18
19
155-159
12
160-164
5
Calculate the following from the above data and also interpret the results
1) The arithmetic Mean
i) The standard deviation
iii) Coefficient of skewness
iv) Coefficient of kurtosis
2) The following table shows the heights to the nearest inch (in) and the weights to the nearest
pound (lb) of a sample of 12 male students at State College
60
135
66
156
70
168
74 65
178 160
Height X( in
Weight Y (lb)
Height X( in)
Veight Y (lb)
132
70 63
155 150
67 65
145 139
72
180
68
152
Ootain the following and provide a appropriate interpretation for each of them​

Answer 1

Answer:

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Explanation:

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