Refer to the Lincolnville School District bus data.Refer to the maintenance cost variable. The mean maintenance cost for last year is $4,552 with a standard deviation of $2332. Estimate the number of buses with a maintenance cost of more than $6,000. Compare that with the actual number. Create a frequency distribution of maintenance cost. Is the distribution normally distributed?Refer to the variable on the number of miles driven since the last maintenance. The mean is 11,121 and the standard deviation is 617 miles. Estimate the number of buses traveling more than 11,500 miles since the last maintenance. Compare that number with the actual value. Create a frequency distribution of miles since maintenance cost. Is the distribution normally distributed?

Data Set 3 --Lincolnville School District Bus Data
ID	Manufacturer	Engine Type (0=diesel)	Capacity	Maintenance Cost	Age	Odometer Miles	Miles
10	Keiser	1	14	4646	5	54375	11973
396	Thompson	0	14	1072	2	21858	11969
122	Bluebird	1	55	9394	10	116580	11967
751	Keiser	0	14	1078	2	22444	11948
279	Bluebird	0	55	1008	2	22672	11925
500	Bluebird	1	55	5329	5	50765	11922
520	Bluebird	0	55	4794	10	119130	11896
759	Keiser	0	55	3952	8	87872	11889
714	Bluebird	0	42	3742	7	73703	11837
875	Bluebird	0	55	4376	9	97947	11814
600	Bluebird	0	55	4832	10	119860	11800
953	Bluebird	0	55	5160	10	117700	11798
101	Bluebird	0	55	1955	4	41096	11789
358	Bluebird	0	55	2775	6	70086	11782
29	Bluebird	1	55	5352	6	69438	11781
365	Keiser	0	55	3065	6	63384	11778
162	Keiser	1	55	3143	3	31266	11757
686	Bluebird	0	55	1569	3	34674	11707
370	Keiser	1	55	7766	8	86528	11704
887	Bluebird	0	55	3743	8	93672	11698
464	Bluebird	1	55	2540	3	34530	11698
948	Keiser	0	42	4342	9	97956	11691
678	Keiser	0	55	3361	7	75229	11668
481	Keiser	1	6	3097	3	34362	11662
43	Bluebird	1	55	8263	9	102969	11615
704	Bluebird	0	55	4218	8	83424	11610
814	Bluebird	0	55	2028	4	40824	11576
39	Bluebird	1	55	5821	6	69444	11533
699	Bluebird	1	55	9069	9	98307	11518
75	Bluebird	0	55	3011	6	71970	11462
693	Keiser	1	55	9193	9	101889	11461
989	Keiser	0	55	4795	9	106605	11418
982	Bluebird	0	55	505	1	10276	11359
321	Bluebird	0	42	2732	6	70122	11358
724	Keiser	0	42	3754	8	91968	11344
732	Keiser	0	42	4640	9	101196	11342
880	Keiser	1	55	8410	9	97065	11336
193	Thompson	0	14	5922	11	128711	11248
884	Bluebird	0	55	4364	9	92457	11231
57	Bluebird	0	55	3190	7	79240	11222
731	Bluebird	0	42	3213	6	68526	11168
61	Keiser	0	55	4139	9	103536	11148
135	Bluebird	0	55	3560	7	76426	11127
833	Thompson	0	14	3920	8	90968	11112
671	Thompson	1	14	6733	8	89792	11100
692	Bluebird	0	55	3770	8	93248	11048
200	Bluebird	0	55	5168	10	103700	11018
754	Keiser	0	14	7380	14	146860	11003
540	Bluebird	1	55	3656	4	45284	10945
660	Bluebird	1	55	6213	6	64434	10911
353	Keiser	1	55	4279	4	45744	10902
482	Bluebird	1	55	10575	10	116534	10802
398	Thompson	0	6	4752	9	95922	10802
984	Bluebird	0	55	3809	8	87664	10760
977	Bluebird	0	55	3769	7	79422	10759
705	Keiser	0	42	2152	4	47596	10755
767	Keiser	0	55	2985	6	71538	10726
326	Bluebird	0	55	4563	9	107343	10724
120	Keiser	0	42	4723	10	110320	10674
554	Bluebird	0	42	1826	4	44604	10662
695	Bluebird	0	55	1061	2	23152	10633
9	Keiser	1	55	3527	4	46848	10591
861	Bluebird	1	55	9669	10	106040	10551
603	Keiser	0	14	2116	4	44384	10518
156	Thompson	0	14	6212	12	140460	10473
427	Keiser	1	55	6927	7	73423	10355
883	Bluebird	1	55	1881	2	20742	10344
168	Thompson	1	14	7004	7	83006	10315
954	Bluebird	0	42	5284	10	101000	10235
768	Bluebird	0	42	3173	7	71778	10227
490	Bluebird	1	55	10133	10	106240	10210
725	Bluebird	0	55	2356	5	57065	10209
45	Keiser	0	55	3124	6	60102	10167
38	Keiser	1	14	5976	6	61662	10140
314	Thompson	0	6	5408	11	128117	10128
507	Bluebird	0	55	3690	7	72849	10095
40	Bluebird	1	55	9573	10	118470	10081
918	Bluebird	0	55	2470	5	53620	10075
387	Bluebird	1	55	6863	8	89960	10055
418	Bluebird	0	55	4513	9	104715	10000