1. A cell phone company wants to draw a sample of 600 customers to gather opinions about potential new features on upcoming phone models. The company draws a random sample of 200 customers who own l-phones, a random sample of 100 customers who own I.G. phones, a random sample of 100 customers who own Samsung phones and a random sample of 200 customers who own other brands of phones. The company uses this combined sample as their survey. What type of sample have they used for their survey. Table 1 59 83 88 89 90 92 93 95 99 101 61 84 88 90 91 92 94 95 99 101 66 85 88 90 91 92 94 96 99 103 71 86 88 90 91 93 94 96 99 105 82 86 89 90 92 93 94 96 99 105 83 88 89 90 92 93 94 97 99 116
1. A cell phone company wants to draw a sample of 600 customers to gather opinions about potential new features on upcoming phone models. The company draws a random sample of 200 customers who own l-phones, a random sample of 100 customers who own I.G. phones, a random sample of 100 customers who own Samsung phones and a random sample of 200 customers who own other brands of phones. The company uses this combined sample as their survey. What type of sample have they used for their survey. Table 1 59 83 88 89 90 92 93 95 99 101 61 84 88 90 91 92 94 95 99 101 66 85 88 90 91 92 94 96 99 103 71 86 88 90 91 93 94 96 99 105 82 86 89 90 92 93 94 96 99 105 83 88 89 90 92 93 94 97 99 116
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:1. A cell phone company wants to draw a sample of 600 customers to gather
opinions about potential new features on upcoming phone models. The company
draws a random sample of 200 customers who own I-phones, a random sample of
100 customers who own I.G. phones, a random sample of 100 customers who
own Samsung phones and a random sample of 200 customers who own other
brands of phones. The company uses this combined sample as their survey. What
type of sample have they used for their survey.
Table 1
59
83
88
89
90
92
93
95
99
101
61
84
88
90
91
92
94
95
99
101
66
85
88
90
91
92
94
96
99
103
71
86
88
90
91
93
94
96
99
105
82
86
89
90
92
93
94
96
99
105
83
88
89
90
92
93
94
97
99
116
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