In a construction site wheelbarrow is loaded by a worker. The total weight after loading of barrow and the loading time is recorded for ten of the cycles in a day randomly. a) Find the correlation coefficient between the time and weight of wheelbarrow. Sample variance of loading time is 303.29 Sample variance of the weight is 272.78 b) Assume that the loading time is normally distributed. Please find the mean of loading time with 99% confidence interval using t distribution. Time to Load(s) Weight of Wheelbarrow(kg) 172 76 173 83 179 95 171 84 193 94 193 106 156 60 158 70 188 90 139 53
In a construction site wheelbarrow is loaded by a worker. The total weight after loading of barrow
and the loading time is recorded for ten of the cycles in a day randomly.
a) Find the
Sample variance of loading time is 303.29
Sample variance of the weight is 272.78
b) Assume that the loading time is
99% confidence interval using t distribution.
Time to Load(s) Weight of Wheelbarrow(kg)
172 76
173 83
179 95
171 84
193 94
193 106
156 60
158 70
188 90
139 53
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