Question

No exel please

Missy Walters owns a mail-order business specializing in baby shipping charges based on the dollar-amount of the mail order elothes. She is considering offering her customers a discount on Before Missy decides the discount policy, she needs a better understanding of the dollar-amount distribution of the mail orders she receives. Missy had an recent orders and record the value, to the nearest dollar, of each order as shown below assistant randomly select 50 The same s0 orders, in ascending order (left to right, top to bottom), are shown below 123 136 141 154 159 162 166 167 173 175 178 182 183 189 194 196 196 198 209 211 212 212 214 222 226 231 231 237 241 242 246 248 258 260 264 277 281 290 311 323 338 348 362 368 389 409 434 445 472 490 The sum of the 50 values (Ex) is 12.573. The sum of the squares of the 50 values (Ex2) is 3,572,621 . The sum of the squares of the deviations from the mean is 411,014.42 12. Determine the Median for this data set. (5 pts.) 13. Determine the 70th percentile. (5 pts) 14. What is the Sample Variance. (5 pts)

Answer 1

R Console [1] 123 136 141 154 159 162 166 167 173 175 178 182 183 189 194 196 196 198 209 [20] 211 212 212 214 222 226 231 231 237 241 242 246 248 258 260 264 277 281 290 [39] 311 323 338 348 362 368 389 409 434 445 472 490 sum [1 12573 > sum2 [1] 3572621 >sum(x-mean (x))A2) [1] 411014.4 > # PART-2 > median (x) [11 228.5 > # PART-3 >quantile (x,0.7) 70% 267.9 > # PART-4 > var (x) [1] 8388.049