Represent the central limit theorem


The attached Excel spreadsheet includes 500 randomly collected data points describing how many minutes of physical exercise different people get each day, according to an accelerometer.

a) Make a histogram in Excel of the randomly collected data points using the following bins:

0-10, 11-20, 21-30, 31-40, 41-50, 51-60, 61-70, 71-80

b) Describe this histogram's center, spread, and shape.

c) Select 10 groups of 50 random data points each. It is OK if you have overlapping data points. List these groups.

d) Take the mean of each group and make a histogram of these 10 data points using the same bins from part a)

e) Describe the histogram's center, spread, and shape.

f) Explain how these two diagrams represent the Central Limit Theorem.

Respondent Minutes of Physical Activity
1 10
2 27
3 55
4 32
5 53
6 17
7 63
8 16
9 48
10 34
11 56
12 29
13 67
14 22
15 71
16 2
17 40
18 39
19 61
20 4
21 15
22 0
23 4
24 6
25 61
26 39
27 57
28 21
29 75
30 43
31 51
32 53
33 72
34 24
35 23
36 43
37 61
38 43
39 24
40 0
41 58
42 18
43 30
44 58
45 60
46 30
47 18
48 8
49 31
50 57
51 33
52 8
53 36
54 24
55 33
56 61
57 15
58 66
59 15
60 60
61 15
62 43
63 50
64 35
65 27
66 64
67 74
68 30
69 17
70 35
71 4
72 31
73 47
74 0
75 72
76 22
77 26
78 32
79 9
80 43
81 58
82 7
83 33
84 68
85 3
86 50
87 74
88 35
89 19
90 8
91 13
92 35
93 1
94 43
95 9
96 48
97 31
98 16
99 70
100 26
101 46
102 13
103 41
104 39
105 65
106 8
107 63
108 63
109 71
110 0
111 65
112 34
113 34
114 52
115 55
116 50
117 71
118 63
119 13
120 47
121 9
122 58
123 6
124 11
125 39
126 17
127 25
128 59
129 57
130 2
131 42
132 20
133 73
134 27
135 29
136 28
137 57
138 14
139 25
140 50
141 32
142 51
143 31
144 5
145 29
146 45
147 36
148 64
149 37
150 28
151 4
152 67
153 19
154 74
155 24
156 48
157 34
158 74
159 11
160 7
161 54
162 21
163 47
164 29
165 49
166 45
167 9
168 71
169 9
170 24
171 2
172 48
173 39
174 23
175 32
176 66
177 22
178 64
179 67
180 5
181 40
182 74
183 12
184 30
185 59
186 44
187 67
188 10
189 26
190 1
191 10
192 26
193 52
194 69
195 66
196 57
197 70
198 13
199 45
200 55
201 23
202 7
203 38
204 71
205 36
206 65
207 3
208 66
209 34
210 26
211 48
212 67
213 69
214 60
215 24
216 52
217 37
218 26
219 6
220 0
221 45
222 39
223 53
224 53
225 45
226 62
227 46
228 6
229 65
230 7
231 31
232 41
233 42
234 18
235 22
236 27
237 25
238 23
239 15
240 39
241 64
242 74
243 51
244 58
245 60
246 25
247 27
248 66
249 30
250 22
251 33
252 55
253 2
254 38
255 42
256 39
257 72
258 3
259 33
260 31
261 27
262 6
263 74
264 45
265 62
266 56
267 54
268 59
269 31
270 32
271 15
272 39
273 30
274 73
275 14
276 23
277 47
278 72
279 13
280 7
281 34
282 63
283 10
284 75
285 4
286 69
287 68
288 43
289 41
290 33
291 70
292 38
293 62
294 72
295 62
296 69
297 64
298 5
299 5
300 58
301 61
302 14
303 69
304 24
305 37
306 69
307 28
308 71
309 37
310 62
311 53
312 39
313 14
314 63
315 74
316 44
317 19
318 71
319 75
320 66
321 2
322 6
323 11
324 39
325 7
326 25
327 27
328 62
329 56
330 25
331 3
332 69
333 33
334 23
335 22
336 9
337 17
338 74
339 43
340 31
341 34
342 53
343 15
344 67
345 41
346 30
347 61
348 65
349 6
350 60
351 34
352 50
353 22
354 25
355 1
356 71
357 32
358 46
359 32
360 63
361 41
362 56
363 15
364 49
365 67
366 54
367 6
368 37
369 49
370 21
371 69
372 74
373 59
374 48
375 8
376 9
377 15
378 14
379 26
380 25
381 62
382 62
383 13
384 8
385 31
386 61
387 23
388 49
389 8
390 52
391 10
392 61
393 40
394 12
395 47
396 16
397 1
398 43
399 7
400 18
401 6
402 45
403 12
404 2
405 57
406 19
407 66
408 5
409 42
410 1
411 24
412 0
413 13
414 3
415 28
416 20
417 43
418 62
419 51
420 18
421 33
422 12
423 25
424 3
425 23
426 2
427 9
428 52
429 52
430 59
431 10
432 32
433 15
434 74
435 52
436 71
437 8
438 46
439 16
440 12
441 20
442 33
443 60
444 30
445 54
446 26
447 67
448 13
449 52
450 33
451 51
452 16
453 47
454 51
455 67
456 39
457 65
458 67
459 13
460 54
461 15
462 2
463 50
464 67
465 43
466 3
467 31
468 35
469 47
470 57
471 72
472 43
473 14
474 22
475 57
476 50
477 44
478 64
479 27
480 30
481 39
482 65
483 38
484 72
485 0
486 29
487 39
488 74
489 56
490 32
491 38
492 35
493 13
494 73
495 43
496 68
497 48
498 39
499 59
500 67




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Basic Statistics: Represent the central limit theorem
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