In: Statistics and Probability
ANALYSIS An Australian manufacturing company is keen to develop new products and develop new product line of shoes so that the company can expand into Asian markets more than before. The data have been collected for 99 products from the market. The data are in an excel file named “SHOES”. The file includes: PRICE: Price of the shoes in dollars. GENDER: 1 for Female product and 2 for Male product. COUNTRY: the country in which the shoes is produced: 1 made in Thailand, 2 made in Singapore and 3 made in China. COST: Production cost of the shoes in dollars.
questions:
QUESTIONS Part 1: 1. Construct a pie chart for numbers of men and women shoes. Construct a pie chart for numbers for the three countries- Thailand, Singapore and China. Present your findings.
2. Construct a cross-classification table of frequencies between gender and country. Plot a vertical bar chart of frequency (Y variable) and gender (X variable), then group the bar charts of genders for three countries and comment on the relationship between gender and country
3. Determine if average prices for female shoes is less than average prices for male shoes. Compare the result with part 2 question
1. Does the result confirm your previous findings? (Follow the hypothesis testing steps, 0.05 level of significance, assuming “equal variances” of populations).
4. Using a scatter graph of price (Y variable on vertical axis) and production cost (X variable, horizontal axis), comment on the relationship between price and cost.
COST | GENDER | COUNTRY | PRICE |
177 | 1 | 1 | 395 |
143 | 1 | 1 | 400 |
163 | 1 | 1 | 304 |
186 | 1 | 1 | 274 |
124 | 1 | 1 | 371 |
43 | 1 | 1 | 355 |
112 | 1 | 1 | 154 |
186 | 1 | 1 | 261 |
124 | 1 | 1 | 258 |
43 | 1 | 1 | 280 |
112 | 1 | 1 | 240 |
186 | 1 | 1 | 314 |
124 | 1 | 1 | 273 |
112 | 1 | 1 | 366 |
265 | 1 | 1 | 372 |
185 | 1 | 1 | 353 |
223 | 2 | 1 | 314 |
213 | 2 | 1 | 294 |
183 | 1 | 1 | 222 |
173 | 1 | 2 | 182 |
143 | 1 | 2 | 161 |
143 | 1 | 2 | 193 |
163 | 1 | 2 | 260 |
133 | 1 | 2 | 198 |
207 | 1 | 2 | 215 |
265 | 1 | 1 | 353 |
133 | 2 | 1 | 386 |
123 | 2 | 1 | 303 |
29 | 2 | 1 | 225 |
29 | 2 | 1 | 171 |
193 | 2 | 1 | 291 |
183 | 2 | 1 | 350 |
139 | 2 | 1 | 315 |
133 | 1 | 2 | 308 |
73 | 1 | 2 | 156 |
83 | 1 | 2 | 313 |
159 | 1 | 2 | 364 |
188 | 1 | 2 | 192 |
139 | 1 | 2 | 151 |
89 | 1 | 2 | 390 |
75 | 1 | 2 | 211 |
69 | 1 | 2 | 306 |
75 | 1 | 2 | 210 |
69 | 1 | 2 | 334 |
55 | 1 | 2 | 247 |
55 | 1 | 3 | 341 |
55 | 1 | 3 | 238 |
41 | 1 | 3 | 299 |
49 | 1 | 3 | 183 |
51 | 1 | 2 | 200 |
45 | 1 | 2 | 271 |
65 | 1 | 2 | 350 |
65 | 1 | 2 | 361 |
43 | 1 | 2 | 250 |
43 | 2 | 2 | 244 |
185 | 2 | 2 | 274 |
185 | 2 | 2 | 388 |
183 | 2 | 2 | 348 |
117 | 2 | 2 | 163 |
111 | 1 | 2 | 172 |
177 | 1 | 2 | 399 |
97 | 2 | 2 | 360 |
69 | 2 | 2 | 244 |
57 | 2 | 2 | 233 |
65 | 2 | 2 | 319 |
36 | 2 | 2 | 337 |
38 | 1 | 3 | 259 |
34 | 1 | 3 | 361 |
36 | 1 | 3 | 381 |
183 | 2 | 3 | 323 |
38 | 2 | 3 | 231 |
138 | 2 | 3 | 205 |
199 | 2 | 1 | 289 |
243 | 2 | 1 | 297 |
163 | 2 | 1 | 356 |
252 | 2 | 1 | 345 |
223 | 2 | 1 | 298 |
213 | 2 | 1 | 285 |
153 | 2 | 1 | 311 |
159 | 2 | 1 | 269 |
188 | 2 | 1 | 340 |
36 | 2 | 3 | 276 |
46 | 2 | 3 | 373 |
126 | 2 | 3 | 287 |
66 | 2 | 3 | 367 |
48 | 2 | 3 | 157 |
116 | 1 | 3 | 155 |
193 | 1 | 3 | 335 |
183 | 1 | 3 | 367 |
139 | 1 | 3 | 345 |
117 | 2 | 3 | 153 |
111 | 2 | 3 | 396 |
69 | 2 | 3 | 277 |
66 | 2 | 3 | 246 |
175 | 2 | 3 | 352 |
155 | 2 | 3 | 380 |
74 | 2 | 3 | 278 |
66 | 2 | 3 | 153 |
175 | 2 | 3 | 209 |
E
from the all results in R studio,
1.Female shoes are produced more than male shoes. For all country the shoes produced are approximately equal.
2. There is no relation between the Gender and country
3. From the results of t test ,p
value is greater than 0.05( level of significance). Therefore there is no significant difference in mean price of male and female.
4. From the scatter plot it seems that there is very weak positive correlation between price and cost of shoe.