Sample Size of Purchase Amounts
Not what you're looking for?
Purchase Amounts for all Customers Shopping at a Local Supermarket on a Given Friday
Customer Amount
1 $35.97
2 $52.23
3 $93.08
4 $2.90
5 $91.13
6 $150.69 4. Problem 4 contains data of the amount that customers spend in a supermarket on a specific Friday. Assume this data represents the population.
7 $75.76
8 $95.74 a. What sample size would be required to be 95% sure that the estimate is within + $10?
9 $79.33 b. How would the sample size value change for a one sided interval (+$10)
10 $36.69 c. Use the data from the first 30 customer to create a sample n = 30. What is the 95% confidence interval for this sample data?
11 $278.50 d. What is a generic 95% confidence interval for any sample n=30?
12 $82.54
13 $58.93
14 $131.56
15 $106.52
16 $215.11
17 $3.42
18 $0.42
19 $71.01
20 $97.99
21 $110.10
22 $289.33
23 $48.02
24 $1.60
25 $45.05
26 $305.44
27 $157.87
28 $26.89
29 $16.44
30 $37.69
31 $146.98
32 $31.96
33 $101.57
34 $12.06
35 $50.92
36 $117.43
37 $184.54
38 $62.78
39 $154.01
40 $91.97
41 $139.55
42 $285.63
43 $12.73
44 $179.99
45 $34.72
46 $132.84
47 $38.56
48 $51.41
49 $85.59
50 $139.34
51 $239.40
52 $5.10
53 $172.15
54 $136.67
55 $222.74
56 $138.40
57 $140.38
58 $23.91
59 $17.88
60 $153.83
61 $146.55
62 $52.36
63 $150.43
64 $141.97
65 $29.67
66 $280.48
67 $54.16
68 $101.26
69 $26.56
70 $32.16
71 $151.86
72 $158.88
73 $111.91
74 $109.35
75 $61.69
76 $48.12
77 $247.15
78 $105.98
79 $119.42
80 $107.41
81 $163.28
82 $184.66
83 $147.16
84 $46.01
85 $60.68
86 $24.19
87 $187.94
88 $37.38
89 $70.05
90 $42.18
91 $68.57
92 $76.19
93 $50.72
94 $160.46
95 $13.94
96 $93.98
97 $80.04
98 $109.65
99 $21.57
100 $112.20
101 $110.89
102 $68.21
103 $87.25
104 $40.76
105 $61.76
106 $240.38
107 $29.35
108 $102.58
109 $222.16
110 $169.74
111 $11.32
112 $17.30
113 $28.99
114 $52.03
115 $203.83
116 $80.59
117 $295.70
118 $40.85
119 $86.88
120 $38.21
121 $65.35
122 $228.90
123 $23.50
124 $210.61
125 $65.90
126 $84.68
127 $66.71
128 $108.78
129 $86.24
130 $312.29
131 $47.99
132 $167.38
133 $79.78
134 $154.43
135 $40.79
136 $9.02
137 $6.80
138 $76.07
139 $308.86
140 $35.48
141 $6.35
142 $136.21
143 $43.08
144 $43.19
145 $33.57
146 $11.70
147 $13.61
148 $86.46
149 $13.28
150 $14.85
151 $57.43
152 $54.08
153 $51.88
154 $217.07
155 $25.68
156 $18.45
157 $24.95
158 $33.05
159 $58.46
160 $40.03
161 $37.67
162 $66.44
163 $215.24
164 $66.53
165 $77.99
166 $20.73
167 $44.95
168 $160.72
169 $31.63
170 $263.41
171 $169.65
172 $41.39
173 $22.64
174 $113.86
175 $62.13
176 $89.41
177 $9.07
178 $22.87
179 $23.31
180 $83.42
181 $16.48
182 $32.46
183 $113.46
184 $181.54
185 $16.16
186 $294.98
187 $100.41
188 $97.79
189 $20.55
190 $36.51
191 $72.58
192 $15.75
193 $205.93
194 $18.60
195 $52.18
196 $99.29
197 $6.41
198 $53.78
199 $226.38
200 $178.51
201 $8.18
202 $142.63
203 $127.50
204 $64.80
205 $143.14
206 $133.78
207 $59.85
208 $185.79
209 $111.94
210 $59.02
211 $236.52
212 $41.30
213 $66.62
214 $23.03
215 $174.76
216 $6.67
217 $38.85
218 $38.98
219 $174.38
220 $65.61
221 $129.06
222 $204.94
223 $138.72
224 $129.99
225 $11.83
226 $53.43
227 $131.80
228 $0.34
229 $179.28
230 $89.40
231 $146.70
232 $30.76
233 $31.93
234 $94.46
235 $219.50
236 $8.62
237 $116.98
238 $21.38
239 $242.18
240 $9.89
241 $76.22
242 $271.54
243 $211.69
244 $28.70
245 $55.21
246 $33.21
247 $47.70
248 $38.22
249 $33.61
250 $243.79
251 $148.22
252 $233.69
253 $163.64
254 $156.91
255 $130.28
256 $101.21
257 $20.36
258 $159.02
259 $47.07
260 $263.21
261 $50.36
262 $23.12
263 $28.60
264 $39.07
265 $258.73
266 $3.35
267 $13.12
268 $183.31
269 $111.27
270 $233.97
271 $72.97
272 $63.20
273 $155.24
274 $30.81
275 $28.90
276 $79.75
277 $109.19
278 $247.41
279 $58.26
280 $7.25
281 $270.10
282 $56.11
283 $15.70
284 $14.86
285 $163.97
286 $8.14
287 $186.56
288 $63.63
289 $203.61
290 $166.87
291 $82.82
292 $108.59
293 $33.19
294 $219.79
295 $29.53
296 $88.11
297 $149.30
298 $1.30
299 $16.70
300 $23.45
301 $63.32
302 $6.12
303 $70.13
304 $26.82
305 $144.19
306 $30.42
307 $63.91
308 $172.26
309 $119.11
310 $19.05
311 $37.87
312 $145.39
313 $16.52
314 $60.39
315 $12.91
316 $53.27
317 $296.90
318 $61.59
319 $117.45
320 $54.53
321 $211.74
322 $204.18
323 $7.41
324 $239.72
325 $43.83
326 $154.09
327 $15.49
328 $35.93
329 $11.29
330 $26.35
331 $64.30
332 $212.53
333 $21.49
334 $98.76
335 $96.21
336 $29.30
337 $185.18
338 $33.02
339 $87.37
340 $116.38
341 $102.39
342 $234.61
343 $75.76
344 $81.68
345 $42.83
346 $33.06
347 $76.39
348 $94.10
349 $26.09
350 $27.07
351 $74.20
352 $73.99
353 $89.97
354 $173.32
355 $28.53
356 $91.30
357 $64.77
358 $5.35
359 $14.89
360 $49.55
361 $7.87
362 $17.18
363 $207.41
364 $76.41
365 $86.16
366 $52.95
367 $33.13
368 $24.96
369 $1.51
370 $53.93
371 $60.02
372 $184.81
373 $107.41
374 $128.61
375 $138.17
376 $12.63
377 $301.14
378 $89.13
379 $226.55
380 $83.96
381 $16.39
382 $94.31
383 $67.88
384 $18.75
385 $21.36
386 $150.07
387 $39.23
388 $66.17
389 $21.85
390 $52.15
391 $82.25
392 $3.59
393 $44.45
394 $175.12
395 $13.96
396 $85.40
397 $142.22
398 $1.45
399 $23.84
400 $105.40
401 $107.17
402 $116.65
403 $187.45
404 $63.87
405 $4.39
406 $74.53
407 $54.06
408 $29.96
409 $46.88
410 $43.05
411 $28.07
412 $9.07
413 $57.44
414 $38.11
415 $154.94
416 $5.66
417 $51.03
418 $35.12
419 $63.24
420 $47.25
421 $78.62
422 $33.34
423 $34.53
424 $40.38
425 $46.41
426 $41.40
427 $19.01
428 $218.19
429 $15.42
430 $3.27
Purchase this Solution
Solution Summary
The solution examines the sample size for purchase amounts for shopping at a local supermarket.
Solution Preview
See the attached file. Thanks. Hope this will help.
4. Problem 4 (P4 on the Exam template) contains data of the amount that customers spend in a supermarket on a specific Friday. Assume this data represents the population. (20 points)
a. What sample size would be required to be 95% sure that the estimate is within + $10?
First calculate the Standard deviation of the population
Standard Deviation $73.85
The get the value ...
Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.