The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. Bank A 6.4 6.6 6.7 6.8 7.1 7.2 7.5 Bank B 4.1 5.4 5.7 7.8 7.8 7.8 6.3 6.6 7.6 7.6 8.6 9.2 10.0 Click the icon to view the table of Chi-Square critical values. O Area to the right of the critical value Construct a 90% confidence interval for the population standard deviation a at Bank A. min < OBank A min Degrees o Fradom f Degrs of dom 0.99 0.10 .01 000s (Round to two decimal places as needed.) 0001 .04 2.706 5.24 0.20 0211 4.05 5.991 7379 9210 10.57 002 .115 0216 0.352 0.54 6.251 11345 12. 0207 0.297 0.44 4.711 1.064 11.143 13277 140 .554 0831 1145 1610 11071 15.00 16.754 -----

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Chapter1: Starting With Matlab
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The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have
formed at three teller windows. Answer the following questions.
Bank A
Bank B
6.4
4.1
6.6
6.7
6.8
7.1
7.2
7.5
7.8
7.8
7.8
5.4
5.7
6.3
6.6
7.6
7.6
8.6
9.2
10.0
Click the icon to view the table of Chi-Square critical values.
i Area to the right of the critical value
Construct a 90% confidence interval for the population standard deviation o at Bank A.
|min <OBank min
Degres of
Fradom
A
Degres of
Prandrm
099
0.95
090
0.10
0.05
0.005
(Round to two decimal places as needed.)
0.001
0.004
O016
2.706
3541
5.024
663
7479
O010
0.020
0.061
0.103
0211
4605
5.991
737
9210
10.597
2.
0072
0.115
0216
0.352
0584
6.251
7815
9.34
11345
12838
0207
0.297
0484
0.711
1.064
11.140
13277
14.60
0412
0.554
O831
1.145
1610
1101
12.833
15.0M
16.750
1237
1.635
2204
10.45
1250
144
16.812
18.548
1.230
1690
2.167
233
12.017
14.067
16.013
18475
20.27
1344
1,646
2.180
2.733
13.342
15507
17.535
20.000
2155
2.000
2.00
3.325
4.168
14.684
1691
19.023
21.
23.59
10
2.156
2.558
3247
3.540
15.8
18.307
20.483
21200
25.1
10
11
2600
3.063
4575
5578
17.275
19.675
21.20
24725
21757
11
12
307
3571
440
5.226 6304
18.549
2100
23.337
2217
2.29
12
13
3.566
4107
500
5.e
7042
1.12
222
24.736
27
2.13
13
4.660
6571
235
24.118
29.141
2131
14
14
4.075
7790
21.064
5.229
7.201
8547
22.307
2499
27.488
3057
22.01
15
15
9
622
7.962
9312
23.542
2629
22.000
34.267
16
16
5.142
5.12
6.40
100
247
277
30.11
3340
25.718
17
17
756
9390
10.
25.ses
200
21.52
37.154
18
18
626
7.015
7.633
1101
27.204
30.144
32 852
36.191
19
19
4900
10117
9.591
10.5
12.443
20.412
21410
34170
375
20
20
7434
.200
2671
35.479
41.01
21
21
1023
11.59
13240
26.7
402
42.79
22
22
9542
10.92
12.330
14042
30.13
13.00
32.00
3172
4163
44181
23
23
20
1019
11.689
14.345
24
12.401
134
1560
33
36.415
24
10.5
Enter your answer in the edit fields and then click Check Answer.
3762
44314
25
25
1020
11.524
13.120
14.61
473
36.56
41
45642
28
Check Answer
26
12.1
13.44
15.379
1729
11.190
4.645
27
parts
remaining
18.114
36.741
40.113
4314
27
110
12479
28
16
37
4133
44.4
28
12.41
135
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Transcribed Image Text:!Question Help The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. Bank A Bank B 6.4 4.1 6.6 6.7 6.8 7.1 7.2 7.5 7.8 7.8 7.8 5.4 5.7 6.3 6.6 7.6 7.6 8.6 9.2 10.0 Click the icon to view the table of Chi-Square critical values. i Area to the right of the critical value Construct a 90% confidence interval for the population standard deviation o at Bank A. |min <OBank min Degres of Fradom A Degres of Prandrm 099 0.95 090 0.10 0.05 0.005 (Round to two decimal places as needed.) 0.001 0.004 O016 2.706 3541 5.024 663 7479 O010 0.020 0.061 0.103 0211 4605 5.991 737 9210 10.597 2. 0072 0.115 0216 0.352 0584 6.251 7815 9.34 11345 12838 0207 0.297 0484 0.711 1.064 11.140 13277 14.60 0412 0.554 O831 1.145 1610 1101 12.833 15.0M 16.750 1237 1.635 2204 10.45 1250 144 16.812 18.548 1.230 1690 2.167 233 12.017 14.067 16.013 18475 20.27 1344 1,646 2.180 2.733 13.342 15507 17.535 20.000 2155 2.000 2.00 3.325 4.168 14.684 1691 19.023 21. 23.59 10 2.156 2.558 3247 3.540 15.8 18.307 20.483 21200 25.1 10 11 2600 3.063 4575 5578 17.275 19.675 21.20 24725 21757 11 12 307 3571 440 5.226 6304 18.549 2100 23.337 2217 2.29 12 13 3.566 4107 500 5.e 7042 1.12 222 24.736 27 2.13 13 4.660 6571 235 24.118 29.141 2131 14 14 4.075 7790 21.064 5.229 7.201 8547 22.307 2499 27.488 3057 22.01 15 15 9 622 7.962 9312 23.542 2629 22.000 34.267 16 16 5.142 5.12 6.40 100 247 277 30.11 3340 25.718 17 17 756 9390 10. 25.ses 200 21.52 37.154 18 18 626 7.015 7.633 1101 27.204 30.144 32 852 36.191 19 19 4900 10117 9.591 10.5 12.443 20.412 21410 34170 375 20 20 7434 .200 2671 35.479 41.01 21 21 1023 11.59 13240 26.7 402 42.79 22 22 9542 10.92 12.330 14042 30.13 13.00 32.00 3172 4163 44181 23 23 20 1019 11.689 14.345 24 12.401 134 1560 33 36.415 24 10.5 Enter your answer in the edit fields and then click Check Answer. 3762 44314 25 25 1020 11.524 13.120 14.61 473 36.56 41 45642 28 Check Answer 26 12.1 13.44 15.379 1729 11.190 4.645 27 parts remaining 18.114 36.741 40.113 4314 27 110 12479 28 16 37 4133 44.4 28 12.41 135 MacBook Pro 14 トト F12 000 F10 FII F7 FB F9 F5 F6 esc F3 F4 F1 F2 & @ 2$ delete 6 7 8 9 4 W E R Y U Q tab ent H K F A caps lock T %#3
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