Customers who made online purchases last quarter from an Internet retailer were randomly sampled from the retailer's database. The dollar value of each customer's quarterly purchases along with the time the customer spent shopping the company's online catalog that quarter were recorded. The sample results are in the file Online.

a. Create scatter plot of the variables Time (x) and Purchases (y). What relationship, if any, appears to exist between the two variables?

b. Compute the correlation coefficient for these sample data. What does the correlation coefficient measure?

c. Conduct a hypothesis test to determine if there is a positive relationship between time viewing the retailer's catalog and dollar amount purchased. Use a level of significance equal to 0.025. Provide a managerial explanation of your results.

Customer Account Number	Time (Minutes)	Purchases ($)
62638	54.69	259
58499	13.42	24
79902	15.78	177
85784	75.70	207
99619	2.28	37
88286	14.13	20
60330	232.36	336
10702	285.93	364
8368	5.97	281
2787	36.80	166
27378	212.46	302
97299	229.68	260
65737	8.68	22
78745	185.31	225
52943	25.33	75
18225	104.55	202
94205	50.27	187
91908	128.32	142
38996	78.19	216
67406	144.20	156
94791	150.97	287
76076	76.93	214
67091	105.34	183
91924	136.62	238
83629	14.91	128
50371	79.72	111
78488	4.53	116
26783	80.52	169
7965	142.43	159
70751	200.18	233
48503	163.15	215
56695	56.37	117
1467	23.96	136
33100	233.67	279
75810	13.25	85
51309	225.41	322
99825	268.36	312
3797	183.13	201
95458	4.86	53
35026	48.39	166
18926	62.24	88
18917	70.76	111
9407	94.85	97
79396	245.09	290
64588	152.27	247
72038	113.97	160
95227	93.25	96
74097	85.13	157
22661	203.94	372
54912	169.48	304
51421	64.02	311