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The data set below contains the electricity​ costs, in​ dollars, during July 2013 for a random...

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Basic Math

The data set below contains the electricity​ costs, in​ dollars,during July 2013 for a random sample of

30 ​one-bedroom apartments in a large city. Complete parts​ (a)and​ (b).

136
91
199
184
114
196
124
132
146
140
138
168
141
155
193
159
86
175
181
148
210
155
98
163
222
149
111
162
170
116

a. Decide whether the data appear to be approximately normallydistributed by comparing data characteristics to theoreticalproperties.

A.​No, the mean and median of the data are too different for thedistribution to be normal.

B.No, the range of the data is too great for the distribution tobe normal.

C.Yes, the distribution of the data appears to closely resemblea normal distribution.

D.No, the interquartile range of the data is too small for thedistribution to be normal

B) Decide whether the data appear to be approximately normallydistributed by constructing a normal probability plot.

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