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Please answer as soon as possible, if you can show how to answer this on excel it would be great thank you. QUESTION 2 (20

Please answer as soon as possible, if you can show how to answer this on excel it would be great thank you.

QUESTION 2 (20 marks)

Is there evidence that the population mean price of the used cars at auction is equal to $13,000 at the 0.09 level of significance

FIND THE CONFIDENCE INTERVAL for your estimate.

Prices of cars at auction

6120
11570
13550
10305
14495
13050
13300
13135
12090
15480
14300
14250
11320
16040
8435
15590
9465
13925
18000
19310
7650
17850
9010
14940
14920
13420
12825
14700
15500
14615
8520
8430
14320
13890
14100
13790
14710
11305
11880
14250
16600
18470
17780
10765
12400
15445
12900
12950
11900
11940
14080
13680
13630
10520
14100
9090
15680
24830
10550
10825
14150
14375
17235
13030
12185
9830
10900
12215
11810
12760
14000
12170
15700
13445
16870
17030
12120
10820
17630
14970
16840
12820
12760
11405
9050
12925
14500
17140
16030
12200
14300
18450
6085
15450
8620
13035
8900
12980
6990
11750
13250
9150
8410
15460
14530
16825
6200
13480
13580
13300
15510
12450
12380
13500
18085
12900
9580
18200
9180
12630
15850
16450
5640
10500
14060
15990
8190
23930
8870
14630
9060
8510
15030
16955
15550
12420
12550
13700
12800
18530
13685
8850
11250
13670
17235
13560
16480
8080
15735
14180
16095
10200
12900
13580
9340
13280
17960
21085
14455
13885
17350
11000
12900
16300
12180
17010
15700
11310
13180
13200
7840
13980
13820
19615
14195
11810
16100
14400
14185
9310
14185
13750
15050
13150
7850
10995
16680
18035
18160
14860
16050
17815
14305
13340
7400
15350
14735
15000
15800
8445
13880
9490
16965
11690
17170
12735
14880
9215
8530
13350
7930
14560
12900
13000
12850
12930
16430
14340
15910
14060
14115
17400
17665
10390
12465
15660
10345
8480
13030
11815
7660
10140
14325
17935
17850
16995
17510
13220
12900
14350
13480
13400
14700
12695
13250
13550
13360
10180
10860
14780
9320
11900
13935
13130
12980
11295
14685
15100
17450
7655
13850
17390
16035
14410
9135
15735
13850
13085
15985
15535
12620
16800
14040
10990
13855
16165
12300
13730
15500
13700
14150
15135
16985
9830
13940
16350
15815
16600
10930
11950
12460
12120
14685
15700
15780
13200
17715
12360
15150
13350
16550
15695
15100
10285
14800
11620
9775
18410
11635
11970
14905
14300
17185
17455
15235
10380
13630
15650
17650
12500
13065
17760
10235
11985
13585
13900
15870
13905
17600
13950
15050
14135
15745
12800
14365
13385
18145
14420
12885
17160
13380
8040
8135
14435
19630
13485
12785
14935
13520
10790
14935
15405
9560
12665
12180
17805
15850
14660
15850
12750
15950
13010
16780
8930
13030
14785
23050
18035
12650
10635
13300
13705
15065
16680
13050
10670
16190
16280
17500
16660
12990
15680
13200
9995
13490
12160
13410
16415
12370
13565
11845
14710
14335
11600
14430
12390
8760
9725
14130
7195
13080
16230
10040
13030
14000
11550
18015
16820
15450
11600
15300
17850
8540
17035
17640
17630
17980
14390
14980
15185
14780
15550
12745
15260
11650
13985
13510
13125
14350
13170
7185
12780
16160
6920
12280
13000
13750
16535
15840
15115
14810
13890
16510
14350
16290
12370
19300
13470
15540
11310
14395
12595
14500
13030
13210
16035
7790
17935
14100
13700
17115
14140
16350
14680
16210
14170
11185
5240
13850
13880
8360
14635
13250
16850
18865
14150
15485
13450
11200
16700
15285
11535
14730
12070
14330
18020
15795
7400
16235
8410
7590
13200
17420
17530
7040
13515
14085
15130
15580
17850

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