Question

Develop a 95 percent confidence interval for the mean number of errors committed (Errors Column) per...

Develop a 95 percent confidence interval for the mean number of errors committed (Errors Column) per team assuming that you know the population standard deviation to be 15.0.

Errors
79
81
108
92
99
106
101
95
88
90
90
117
124
102
106
107
94
95
68
137
103
114
109
101
89
83
92
88
121
109

Select one:

a. 94.15, 105.05

b. 95.22, 103.98

c. 94.23, 104.97

d. 95.10, 104.10

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