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The weights (in pounds) of 20 adult US college students are listed below. 202 172 185 190 169 245 169 195 240 174 211 198

The weights (in pounds) of 20 adult US college students are listed below.

202

172

185

190

169

245

169

195

240

174

211

198

205

192

233

260

188

158

171

228

Construct an90% confidence interval for the mean.

Hint: you must calculate the mean and standard deviation first and decide of you need to us the z-distribution or the t-distribution

Please answer correctly and I will rate you. Thanks

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