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 -----
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 -----
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section11.1: Measures Of Center And Variation
Problem 31E
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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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