The following data sets represent simple random samples from a population whose mean is 100. Complete parts (a) through (e) below. Full data set Data Set I 106 Data Set II 106 87 96 Data Set Ill 106 87 96 104 120 120 90 84 120 90 84 82 92 112 83 92 112 83 88 92 126 126 89 99 126 89 99 103 90 90 112 90 112 91 89 75 75 113 75 113 108 114 74 74 99 115 74 99 107 107 123 107 123 94 (a) Compute the sample mean of each data set. Calculate the sample mean for data set 1. x= 98.75 (Type an integer or a decimal.) Calculate the sample mean for data set II. x= 98.85 (Type an integer or a decimal.) Calculate the sample mean for data set III. x=98.833 (Round to three decimal places as needed.) (b) For each data set, construct a 95% confidence interval about the population me Construct a 95% confidence interval for data set L. The lower bound is 82.59. The upper bound is 114.91 (Round to two decimal places as needed.) Construct a 95% confidence interval for data set II. The lower bound is 91.62 The upper bound is 106.08. (Round to two decimal places as needed.) Construct a 95% confidence interval for data set Ill The lower bound is. The upper bound in

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The following data sets represent simple random samples from a population whose mean is 100. Complete parts (a) through (e) below.
Full data set
Data Set I
106
Data Set II
106
87
96
Data Set III
106
87
96
104
120
120
90
84
120
90
84
82
92
112
83
92
112
83
88
92
126
126
89
99
126
89
99
103
90
112
90
112
89
90
75
75
113
75
113
108
99
115
99
107
107
123
107
123
94
A
(a) Compute the sample mean of each data set.
Calculate the sample mean for data set I.
天
x = 98.75
(Type an integer or a decimal.)
Calculate the sample mean for data set II.
= 98.85
(Type an integer or a decimal.)
Calculate the sample mean for data set III.
x= 98.833
(Round to three decimal places as needed.)
(b) For each data set, construct a 95% confidence interval about the population mean.
Construct a 95% confidence interval for data set I.
The lower bound is 82.59
The upper bound is 114.91
(Round to two decimal places as needed.)
Construct a 95% confidence interval for data set II.
The lower bound is 91.62
The upper bound is 106.08
(Round to two decimal places as needed.)
Construct a 95% confidence interval for data set III.
The lower bound is
The upper bound is
(Round to two decimal places as needed.)
Transcribed Image Text:The following data sets represent simple random samples from a population whose mean is 100. Complete parts (a) through (e) below. Full data set Data Set I 106 Data Set II 106 87 96 Data Set III 106 87 96 104 120 120 90 84 120 90 84 82 92 112 83 92 112 83 88 92 126 126 89 99 126 89 99 103 90 112 90 112 89 90 75 75 113 75 113 108 99 115 99 107 107 123 107 123 94 A (a) Compute the sample mean of each data set. Calculate the sample mean for data set I. 天 x = 98.75 (Type an integer or a decimal.) Calculate the sample mean for data set II. = 98.85 (Type an integer or a decimal.) Calculate the sample mean for data set III. x= 98.833 (Round to three decimal places as needed.) (b) For each data set, construct a 95% confidence interval about the population mean. Construct a 95% confidence interval for data set I. The lower bound is 82.59 The upper bound is 114.91 (Round to two decimal places as needed.) Construct a 95% confidence interval for data set II. The lower bound is 91.62 The upper bound is 106.08 (Round to two decimal places as needed.) Construct a 95% confidence interval for data set III. The lower bound is The upper bound is (Round to two decimal places as needed.)
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