Question

A business analyst wants to know if a new website design compared to an old website design is showing increased page views per visit. Two different samples of customers are randomly sent to one of two different websites, offering the same products, but with different designs. Is there a difference in average page views between the new and old website design?

Use data from "website" sheet in excel. Run the appropriate statistical test using α=0.01 . Which of the following are true? More than one answer is possible.

		There was a significant difference in average page views between new and old designs.
		The new design has 44.66 page views higher on average than the old design.
		There was no significant difference in average page views between designs.
		The new design is not as effective as the old design, based on average number of page views.

new design	old design
79	109
33	99
78	126
36	104
32	115
95	57
36	71
29	111
14	132
43	90
70	142
72	102
78	61
67	128
44	105
10	147
30	139
67	123
84	141
30	93
65	88
31	50
60	150
34	55
85	64
51	63
45	91
49	143
95	80
30	57
94	117
90	82
84	68
25	91
51	147
39	142
13	84
12	122
54	139
80	100
77	95
12	50
88	81
10	67
96	62
96	92
54	98
94	64
14	83
80	148

Answer 1

There was no significant difference in average page views between designs.
The new design is not as effective as the old design, based on average number of page views.

As per the statistic output P value < 0.01

t-Test: Paired Two Sample for Means
	new design	old design
Mean	54.7	99.36
Variance	786.9081633	945.7453
Observations	50	50
Pearson Correlation	-0.058777523
Hypothesized Mean Difference	30
df	49
t Stat	-12.32723121
P(T<=t) one-tail	6.23973E-17
t Critical one-tail	2.40489176
P(T<=t) two-tail	1.24795E-16
t Critical two-tail	2.679951974