Conductthe following descriptive statistics analyses using thePastasR Us, Inc. data setin Microsoft Excel. Answer the questions in the spreadsheet or a separate Microsoft Word document.

Inserta new column in the database that corresponds toAnnualSales.AnnualSalesis the result of multiplying a restaurant'sSqFtbySales/SqFt.

Calculatethe following:

• mean
• standard deviation
• skew
• 5-number summary
• interquartile range (IQR) for each of the variables

Createa box-plot for theAnnualSalesvariable and answer the following questions:

• Does it look symmetric?
• Would you prefer the IQR instead of the standard deviation to describe this variable's dispersion? Why or why not?

Createa histogram for theSales/SqFtvariable and answer the following questions:

• Is the distribution symmetric? If not, what is the skew?
• Are there any outliers? If so, which one(s)?
• What is theSqFtarea of the outlier(s)? Is the outlier(s) smaller or larger than the average restaurant in the database? What can you conclude from this observation?
• What measure of central tendency is more appropriate to describeSales/SqFt? Why?

	Pastas R Us, Inc. Database (n = 74 restaurants)
	Square Feet	Per Person Average Spending	Sales Growth Over Previous Year (%)	Loyalty Card % of Net Sales	Annual Sales Per Sq Ft	Median HH Income (3 Miles)	Median Age (3 Miles)	% w/ Bachelor's Degree (3 Miles)
Obs	SqFt	Sales/Person	SalesGrowth%	LoyaltyCard%	Sales/SqFt	MedIncome	MedAge	BachDeg%
1	2354	6.81	-8.31	2.07	701.97	45177	34.4	31
2	2604	7.57	-4.01	2.54	209.93	51888	41.2	20
3	2453	6.89	-3.94	1.66	364.92	51379	40.3	24
4	2340	7.13	-3.39	2.06	443.04	66081	35.4	29
5	2500	7.04	-3.30	2.48	399.20	50999	31.5	18
6	2806	6.93	-1.94	2.96	264.64	41562	36.3	30
7	2250	7.11	-0.77	2.28	571.59	44196	35.1	14
8	2400	7.13	-0.37	2.34	642.25	50975	37.6	33
9	2709	6.58	-0.25	2.20	461.45	72808	34.9	28
10	1990	6.77	-0.17	2.34	638.82	79070	34.8	29
11	2392	6.66	0.47	2.09	484.38	78497	36.2	39
12	2408	7.03	0.55	2.47	581.09	41245	32.2	23
13	2627	7.03	0.77	2.04	267.71	33003	30.9	22
14	2500	7.00	1.92	2.02	572.84	90988	37.7	37
15	1986	7.38	2.05	2.01	586.48	37950	34.3	24
16	2500	7.18	2.12	2.64	368.73	45206	32.4	17
17	2668	7.35	2.84	2.22	351.47	79312	32.1	37
18	2517	6.95	2.88	2.07	458.24	37345	31.4	22
19	1251	7.02	3.96	1.94	987.12	46226	30.4	36
20	2998	6.85	4.04	2.17	357.45	70024	33.9	34
21	2625	7.16	4.05	0.72	405.77	54982	35.6	26
22	2300	6.99	4.05	2.00	680.80	54932	35.9	20
23	2761	7.28	4.24	1.81	368.02	34097	33.6	20
24	2764	7.07	4.58	2.13	303.95	46593	37.9	26
25	2430	7.05	5.09	2.50	393.90	51893	40.6	21
26	2154	6.54	5.14	2.63	562.12	88162	37.7	37
27	2400	6.70	5.48	1.95	494.88	89016	36.4	34
28	2430	6.91	5.86	2.04	310.07	114353	40.9	34
29	2549	7.58	5.91	1.41	373.46	75366	35.0	30
30	2500	7.03	5.98	2.05	235.81	48163	26.4	16
31	3653	6.84	6.08	2.13	413.08	49956	37.1	28
32	2440	6.94	6.08	2.08	625.22	45990	30.3	36
33	2600	7.07	6.13	2.73	274.30	45723	31.3	18
34	2160	7.00	6.27	1.95	542.62	43800	29.6	36
35	2800	7.08	6.57	2.04	178.56	68711	32.9	18
36	2757	6.75	6.90	1.62	375.33	65150	40.7	24
37	2450	6.81	6.94	1.95	329.09	39329	29.3	22
38	2400	7.64	7.12	1.64	297.37	63657	37.3	29
39	2270	6.62	7.39	1.78	323.17	67099	39.8	25
40	2800	6.76	7.67	2.23	468.84	75151	33.9	28
41	2520	7.11	7.91	2.15	352.57	93876	35.0	40
42	2487	7.05	8.08	2.83	380.34	79701	35.0	39
43	2629	6.90	8.27	2.37	398.12	77115	35.9	30
44	3200	7.17	8.54	3.07	312.15	52766	33.0	17
45	2335	6.75	8.58	2.19	452.16	32929	30.9	22
46	2500	7.45	8.72	1.28	698.64	87863	38.5	29
47	2449	7.00	8.75	1.76	367.19	73752	40.5	19
48	2625	6.96	8.79	2.51	431.93	85366	32.1	29
49	3150	7.30	8.90	1.90	367.06	39180	34.8	18
50	2625	6.96	9.12	1.98	400.53	56077	38.0	19
51	2741	6.71	9.47	2.41	414.36	77449	37.0	34
52	2500	6.82	10.17	2.17	481.11	56822	34.7	25
53	2450	6.58	10.66	2.16	538.06	80470	36.4	30
54	2986	7.56	10.97	0.29	330.48	55584	36.8	21
55	2967	6.98	11.34	1.85	249.93	78001	32.2	30
56	3000	7.28	11.45	1.88	291.87	75307	34.8	30
57	2500	6.76	11.51	2.19	517.40	76375	36.7	28
58	2600	6.92	11.73	2.56	551.58	61857	33.8	31
59	2800	6.73	11.83	2.16	386.81	61312	34.2	16
60	2986	6.91	11.95	2.10	427.50	72040	39.0	31
61	2223	6.77	12.47	1.98	453.94	92414	34.9	40
62	2300	7.33	12.80	0.87	512.46	92602	39.3	33
63	3799	7.87	13.78	1.07	345.27	59599	35.6	28
64	2700	6.95	14.09	3.38	234.04	72453	36.0	23
65	2650	7.33	14.23	1.17	348.33	67925	41.1	16
66	2500	6.95	14.60	2.14	348.47	42631	24.7	25
67	2994	7.21	14.88	0.93	294.95	75652	40.5	25
68	2718	7.25	15.42	2.22	361.14	39650	32.9	18
69	3700	7.65	16.18	1.68	467.71	48033	30.3	15
70	2000	6.93	17.23	2.41	403.78	67403	36.2	19
71	2400	6.79	18.43	2.81	245.74	80597	32.4	27
72	2450	7.37	20.76	1.09	339.94	60928	43.5	21
73	2575	6.76	25.54	0.64	400.82	73762	41.6	29
74	2400	7.97	28.81	1.77	326.54	64225	31.4	15