-Calculate descriptive statistics (mean, median, standard deviation) for each of the variables:serum cholesterol (scl), mg/100 ml; age at baseline exam, years; and body mass index (bmi),kg/m2. In addition, calculate the 95% confidence interval for each variable.

-Summarize with a paragraph to provide an interpretation of the95% confidence intervalfor each variable, and to alsocomment on the skewnessof the distribution of each variable.

id	scl	age	bmi
4627	192	53	28.4
2568	207	61	25.1
4192	231	48	26.2
3977	271	39	28.4
659	182	61	33.3
2290	276	44	25.3
4267	259	39	27.9
2035	242	47	26.6
3587	242	60	30.8
1046	260	58	28.7
3883	326	47	35.2
455	185	43	24.2
3004	255	59	22.5
3229	232	56	37.9
3249	221	57	36.8
2993	192	54	32.0
2624	265	51	31.9
158	265	60	25.8
1439	309	53	25.1
879	228	37	23.0
4598	232	49	30.4
2331	221	51	27.4
1580	225	52	28.1
1713	263	54	26.3
3493	255	57	28.9
3897	317	49	26.0
3122	241	60	23.0
4116	247	45	22.3
905	213	51	20.2
325	322	58	24.9
1523	258	47	30.6
2136	300	54	25.4
3391	168	60	24.9
825	231	44	21.8
1326	210	63	23.4
2098	228	59	23.2
1382	362	38	27.7
2271	234	49	22.5
3621	350	61	30.0
1739	209	55	26.8
3218	220	57	22.1
4413	274	41	38.5
4404	223	61	37.3
1005	339	51	24.2
1221	322	55	27.7
1654	213	52	40.2
1552	295	45	28.0
1416	236	54	28.8
3305	274	46	32.9
564	255	57	25.7
2852	239	44	31.6
2369	234	35	23.1
1357	287	64	19.3
1423	219	48	26.8
702	213	58	27.7
1447	223	61	23.2
1857	278	48	23.4
1266	254	41	22.1
4093	184	51	27.5
313	200	45	34.7
1395	226	52	22.2
4006	199	63	22.9
2693	259	56	23.7
3198	192	60	25.3
3631	267	50	24.5
4280	292	60	24.6
1004	250	53
4108	225	42	29.6
2173	258	40	28.6
2249	205	55	18.1
1472	307	51	23.0
1933	276	57	28.2
2182	253	61	27.9
1667	282	65	25.3
1991	288	57	26.1
3187	260	63	26.5
2747	305	60	24.9
192	206	53	24.2
3142	236	63	27.9
352	245	60	25.0
1144	271	50	24.8
4448	198	42	29.6
2202	228	39	23.2
487	178	38	21.5
1784	329	56	25.6
744	190	48	29.6
1873	225	63	25.3
1765	285	37	32.6
475	244	64	29.4
3447	240	39	22.3
1555	143	47	26.5
3843	267	35	26.3
1953	275	42	22.1
2499	192	36	23.4
2914	200	55	27.5
3690	267	46	22.0
3018	313	57	31.8
2982	196	58	27.5
4582	156	45	30.8
4587	270	64	26.7
739	235	62	27.4
280	290	50	24.0
2783	238	44	19.2
662	155	36	22.5
293	240	37	22.9
1982	185	59	27.5
4640	186	58	32.5
4408	245	62	31.5
4329	250	59	24.0
4090	315	43	24.7
3092	225	43	19.1
1233	492	42	27.1
732	191	46	27.3
750	229	55	26.3
2027	189	54	25.1
338	175	43	23.2
2794	178	57	19.3
3226	268	56	25.7
4214	235	44	20.5
4043	194	61	26.5
4068	215	34	19.9
4343	216	50	32.6
3017	245	59	24.6
3939	255	54	35.0
2759	258	50	26.0
3245	301	55	30.6
2096	296	56	23.3
1785	242	58	25.7
4556	259	62	17.6
1586	199	62	34.0
2335	234	49	26.6
4384	215	38	40.1
4645	237	36	29.3
792	270	40	28.2
1196	255	43	27.0
849	225	53	19.3
258	206	34	21.5
562	180	56	28.5
54	222	37	25.5
4407	300	51	34.6
1173	190	38	24.3
986	308	59	29.0
2892	280	51	24.4
551	215	60	25.5
1246	258	58	23.4
1050	296	54	24.2
3154	269	39	32.5
2245	276	49	19.6
202	225	49	30.0
423	228	58	24.7